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Largest Baseball Families
This is a list of families which have had five or more members of note in the baseball world. The list is likely incomplete.
- 1 Aaron/Lucas (8 members)
- 2 Afenir (5)
- 3 Alomar (6)
- 4 Alou/Rojas (9)
- 5 Andreoli/Bard/O'Brien (6)
- 6 Bando (6)
- 7 Bankhead (5)
- 8 Bonifay (6)
- 9 Boone (6)
- 10 Bordes/Cutler/Heidemann/Patterson (8)
- 11 Boyer (9)
- 12 Bragan (6)
- 13 Buckner/Carson (5)
- 14 Carrasquel/Collazo/Colón (9)
- 15 Cisco (5)
- 16 Claesson (5)
- 17 Clarkson/Hackett (7)
- 18 Comiskey/Rigney/Schorling (7)
- 19 Cruz (6)
- 20 Daal/Lourens (5)
- 21 Davalillo (5)
- 22 Delahanty (6)
- 23 Elliott (5)
- 24 Escobar/Campos (6)
- 25 Erickson (5)
- 26 Farrell (5)
- 27 Griffith/Cronin/Haynes/Robertson (7)
- 28 Gourriel/Degado (7)
- 29 Guerrero (9)
- 30 Hafey (5)
- 31 Hairston (9)
- 32 Harris/Reniff/Rodebaugh/Clark (7)
- 33 Incaviglia (5)
- 34 Iorg (6)
- 35 Jeffcoat (5)
- 36 Keough (5)
- 37 Lansford (5)
- 38 MacPhail/Grant (6)
- 39 Mantle (7)
- 40 Manush (5)
- 41 Matumoto (5)
- 42 McDonald (5)
- 43 McKeon/Booker (6)
- 44 Mota/Baez (6)
- 45 Murray (5)
- 46 Narron (6)
- 47 Narleski (5)
- 48 Nilsson (7)
- 49 O'Neill/Nowak/Webb (6)
- 50 Paciorek (8)
- 51 Peña (5)
- 52 Penders/Quinn (6)
- 53 Perez (6)
- 54 Quinn/Hemond (15)
- 55 Ripken (5)
- 56 Roenicke (6)
- 57 Roof/Haas (12)
- 58 Sánchez (5)
- 59 Sato (5)
- 60 Schofield/Werth/Gowan (5)
- 61 Segui (5)
- 62 Shelby/Harrison (6)
- 63 Stassi/Hoag (6)
- 64 Steinbrenner/Molloy (5)
- 65 Thon (5)
- 66 Tolleson/Adair/Fowler (7)
- 67 Tracy (5)
- 68 Vaughn/Royster/Fuller (5)
- 69 Urbanus (5)
- 70 Waller (5)
- 71 Yang/Chang/Chen (about 15)
- 72 Yount/Vandergeest (6)
- 73 Zambrano/Odor (6)
Aaron/Lucas (8 members)
Hank Aaron set the all-time major league home run record and was one of the greatest right fielders ever. His brother Tommie Aaron played in the majors as well and managed as high as AAA in the minors. Hank and Tommie had a cousin, Wilmer Aaron, who twice hit over .300 in AA, and another cousin, Melvin Aaron (Wilmer's brother), played in the minors. Hank's son, Lary Aaron, and Melvin's son, Ging Aaron, also played minor league ball. Two of Hank's brothers-in-law also were involved in baseball - Bill Lucas was the Atlanta Braves general manager while Robert Lucas was a college coach and a scout.
There were four Alomar brothers to start the family baseball dynasty. Sandy Alomar Sr. played in the majors while Demetrio Alomar, Antonio Alomar and Rafael Alomar played in the minors; the latter two spent time at AAA. One of Sandy's sons, Roberto Alomar, is in the Hall of Fame while Sandy Alomar Jr. made multiple All-Star teams.
Felipe Alou, Matty Alou and Jesus Alou were famous for forming an outfield together at one point. They had over 5,000 MLB hits between them, retiring second to the Waners. Felipe had three children in the baseball world - Moises Alou played over 15 years in the majors while Jose Alou and Felipe Alou Jr. only played in the minors. Mel Rojas was a nephew of the three older Alous and a cousin of the three younger ones and pitched in the majors. Mel's brother Francisco Rojas played in the minors and his son Mel Rojas Jr. was drafted in 2010.
Daniel Bard and his brother Luke Bard both were major league pitchers. Their father Paul Bard played in the minors. His grandfather Fran O'Brien was a college coach. Fran's son Kevin O'Brien played in the minors as well. Fran's grandson and Daniel and Luke Bard's cousin is John Andreoli.
Sal Bando was a standout third baseman for the Oakland A's in the 1970s. His brother Chris Bando was a backup major league catcher in the 1980s. Sal Bando Jr. played in the minors, then became a college coach (as did Chris). Chris's sons Ben Bando, Michael Bando and Phil Bando played in the minors.
The Bankheads were one of the most noted families in the Negro Leagues. Sam Bankhead was a major star, while Dan Bankhead became a pioneer in integrating the majors. Fred Bankhead spent 13 years in the Negro Leagues and made one East-West Game. Garnett Bankhead and Joe Bankhead had much shorter careers.
Cam Bonifay is the former General Manager of the Pittsburgh Pirates. His son Josh Bonifay played four years at AA, another son (Jonathan Bonifay) was a scout and his brother Brannon Bonifay appeared briefly in the minors. Brannon's son Ken Bonifay played three years of AA. Cam's father Bob Bonifay was a minor league executive for many years.
Ray Boone hit 151 homers and made two All-Star teams. His son Bob Boone was a four-time All-Star and noted as one of the most durable catchers ever while his other son Rod Boone was a college star who played in the minors. Bob had three sons in professional baseball - Bret Boone and Aaron Boone have made a combined four All-Star teams while Matt Boone never made it to The Show.
Shortstop Jack Heidemann played in the major leagues from 1969 to 1972 and from 1974 to 1977. His son, Mike Heidemann, played in independent baseball. His father-in-law, Bill Cutler, served as President of the Pacific Coast League. His nephews, Brett Bordes, Greg Bordes and Jim Patterson - who are also Cutler's grandchildren - have all played in the minor leagues. The Bordes' father, Charles Bordes played in the minor leagues, as did Patterson's father, Larry Patterson.
Ken Boyer was one of the top third basemen of his era and has been considered good enough to be a Hall of Famer by some sources. His brother Clete Boyer was noted as one of the top defensive third basemen of his time, while Cloyd Boyer pitched in the majors. Brothers Wayne Boyer, Lynn Boyer, Ron Boyer and Len Boyer played in the minors. Ken's son Dave Boyer and Clete's son Mickey Boyer also played minor league ball.
Jim Bragan coached six years in the majors after managing and playing in the minors. His brother Bobby Bragan both played and managed in the major leagues. Their brother Frank Bragan played in the minors while Peter Bragan owned a minor league team, as did Peter's son Peter Bragan Jr. Another brother, Lionel Bragan, scouted for the Reds.
Bill Buckner was a batting champion and All-Star in the majors, though most remembered for one crucial World Series error. His brother Jim Buckner reached AAA while another brother, Bob Buckner, was a scout. The Buckners are cousins of the mother of major leaguer Matt Carson and college coach Clayton Carson.
Alex Carrasquel was the first major leaguer from Venezuela. He had four nephews who played professionally, most notably big league shortstop Chico Carrasquel. Chico's brothers Domingo Carrasquel Sr. and Martin Carrasquel played in the minors. Alex's 4th nephew to play in the minors was Manuel Carrasquel. Domingo's son Domingo Carrasquel Jr. and Martin's son Emilio Carrasquel both played in the minor leagues. Cris Colón, a cousin of Domingo Jr. and Emilio, was the third member of the family to make it to the majors. Alfonso Collazo pitched in the minors and was a cousin of Martin and Manuel Carrasquel and Cris Colón and nephew of Alex, Chico and Domingo Sr.
Major league pitcher Galen Cisco's son, Jeff Cisco played in the minors, as did Jeff's two sons – Mike Cisco and Drew Cisco. Another son, Galen Cisco, Jr. also played professionally. Only Galen Cisco reached the major leagues.
Robert Claesson was a pitcher for the Swedish national team and his wife Yvonne Claesson was president of the Stockholm Baseball Club. Their sons Joakim Claesson and Jakob Claesson both pitched for the national team as well while another son, Thomas Claesson, has pitched in the Swedish Elitserien.
John Clarkson was a Hall of Fame pitcher; his brothers Walter Clarkson and Dad Clarkson also played in the majors as did their cousins Mert Hackett and Walter Hackett. The Hacketts were also cousins to Hall of Famers Tim Keefe and Joe Kelley and, it is likely, the Clarksons were also related to Keefe and Kelley. All seven were born in Cambridge, Mass.
Charlie Comiskey was a long-time player and manager in the majors but was noted more for his ownership of the Chicago White Sox. His son J. Louis Comiskey inherited the team from him. Louis's widow Grace Comiskey in term inherited the White Sox, followed by her daughter Dorothy Comiskey. Dorothy was married to John Rigney, a major league pitcher. Charlie's son-in-law John Schorling was an owner of the Negro League's Chicago American Giants. Chuck Comiskey, Charlie's grandson, and Rigney were co-owners of the White Sox before the team finally passed out of the family's hands.
Jose Cruz Sr. was a star player for the Houston Astros of the 1970s while his brothers Tommy Cruz and Hector Cruz also played in the majors. Jose's son Jose Cruz Jr. later played in the majors and his other son Jose E. Cruz played in the minors, while Tommy's son Cirilo Cruz played in the minor leagues.
Ritchie Daal was a coach in the Hoofdklasse. Three of his sons - Randy Daal, Ricky Daal and Rodney Daal - played in that league, and Rodney signed a contract with the San Diego Padres in 2010. Ritchie's nephew Emeron Lourens has also played in the Hoofdklasse.
Vic Davalillo was an All-Star outfielder in a long major league career. His brother Yo-Yo Davalillo briefly played in the majors but had a longer playing and managerial career in Latin America. Yo-Yo's son Marco Antonio Davalillo was a minor league manager and coach, while his other son David Davalillo made it to AA as an infielder. Marco's son Marco Davalillo Jr. has also played in the minors.
Ed Delahanty was a Hall of Fame outfielder who had one of the highest batting averages in MLB history. His brother Jim Delahanty was one of the better American League middle infielders of the Deadball Era. His other brothers Tom Delahanty, Frank Delahanty and Joe Delahanty all played in the majors at one point. A sixth brother, Willie Delahanty, played in the minor leagues.
Gene Elliott played 5 games in the major leagues and 10 seasons in the minors. His brothers Buck Elliott and Heise Elliott played in the minors. Buck's sons Buck Elliott and Willard Elliott also played in the minors.
Jose Escobar played in the major leagues briefly. His sons Edwin Escobar and Elvis Escobar followed him into the professional ranks. His nephews Vicente Campos, Alcides Escobar and Kelvim Escobar (cousins of each other, not brothers) played in the majors.
John Farrell was a major league pitcher and manager. His father Tom Farrell had pitched in the minors. His son Jeremy Farrell played in the minors, son Shane Farrell was a scout and son Luke Farrell also played in the majors.
Clark Griffith was a Hall of Fame pitcher and manager who owned the Washington Senators for decades. His adopted children Calvin Griffith and Thelma Griffith inherited the Senators from him. He was the father-in-law of Joe Cronin and Joe Haynes and the adopted father of Sherry Robertson. Joe's son Bruce Haynes was the Minnesota Twins farm director.
Lourdes Gourriel Sr. was a member of the Cuban national team for over 15 years and a two-time batting titlist in Cuba. His brother, Luis Enrique Gourriel, had a long career on the island. Lourdes' son Yulieski Gourriel has been one of the top Cuban sluggers in the early part of the 21st Century before playing in the major leagues, son Lourdes Gourriel Jr. has played for the Cuban national team and in the major league as well. In the majors, the Gourriel brothers have used the spelling "Gurriel" for their last name. Another son, Yuniesky Gourriel has been a starter in Cuba. Lourdes Sr.'s uncle José R. Delgado was a member of the Cuban national team for a time. Delgado's son Yoannys Delgado has joined the family line on Sancti Spiritus.
Vladimir Guerrero was a nine-time All-Star outfielder in the major leagues, and brother Wilton Guerrero played eight years in the majors. Two other brothers played minor league baseball: Eleazar Guerrero, who never made it past the Dominican Summer League, and Julio Cesar Guerrero, who received a large signing bonus but topped out in Class A. The next generation includes Vladimir Guerrero Jr., who was signed to a $3.9 million bonus in 2015; Eleazar's sons Gabby Guerrero, a top minor league prospect, and Josue Guerrero, who signed with the Chicago White Sox in 2016 and began playing in their system in 2017; and two sons of sister Aurelia, Jose Guerrero a pitcher in the New York Mets organization, and Gregory Guerrero, a shortstop signed to his first pro contract in 2015.
Chick Hafey was a Hall of Fame outfielder; his brother Albert Hafey played in the minors. Their cousins Tom Hafey and Bud Hafey both played in the majors, while a third cousin (Will Hafey) was a two-way player at the highest tier of the minors.
The first three-generation African-American MLB family was led by Sammy Hairston, who only had a handful of games in The Show. His sons Jerry Hairston Sr. and Johnny Hairston played in the majors while Sam Hairston Jr. appeared in the minors. Jerry's kids Jerry Hairston Jr. and Scott Hairston also played in the big leagues. Johnny's kids John Hairston Jr. and Jason Hairston played in the minors.
Joe Harris was a productive major league player of the 1910s and 1920s. His brothers Dave Harris, Jack Harris and Tom Harris played in the minors. Great-nephew Hal Reniff played in the majors, while two other relatives - Ed Rodebaugh and Dick Clark - appeared in the minor leagues.
Pete Incaviglia hit over 200 home runs in the majors and set the NCAA Division I home run record. His father Tom Incaviglia was a minor league player and brother Tony Incaviglia reached AA. Tony's kids Philip Incaviglia and Thomas Incaviglia also played pro ball.
George Jeffcoat pitched four seasons in the majors and his brother Hal Jeffcoat played for 12 years. Two more brothers, William Jeffcoat and Charles Jeffcoat, were minor leaguers. Hal's son Harold Jeffcoat also played pro ball.
Marty Keough was a major league outfielder for 11 years and his brother Joe Keough spent six years in the big leagues. A third brother, Tom Keough, played 8 games in the minors in 1954. Marty's son Matt Keough pitched nine seasons in the majors and four in Japan (where his dad had played one year). Matt's son Shane Keough has played in the minors.
Carney Lansford won one batting title and was second another year. His brother Jody Lansford played briefly in the majors. A third brother, Phil Lansford, was a first-round draft pick who never made it past A ball. Carney's sons Jared Lansford and Josh Lansford are active in the minors as of 2007.
Larry MacPhail is a member of the Hall of Fame, having been general manager of two teams and president of another. His son Lee MacPhail also served as GM of two teams and was president of the American League; he too went into the Hall of Fame. Lee's son Andy MacPhail has been both a GM and club president. Lee's second son Lee MacPhail III was a minor league general manager. Lee MacPhail IV has worked in scouting, as has his brother-in-law Brad Grant (Lee married Brad's sister).
Hall of Fame center fielder Mickey Mantle had six relatives who played minor league baseball - cousin Max Mantle, brother Roy Mantle, brother Ray Mantle and son Mickey Mantle Jr.. Third cousin Ryan Mantle was drafted in 2008. Mickey's great-nephew Blake King also played in the professional ranks.
Hall of Famer Heinie Manush had four known relatives that played professional baseball. Brother Frank Manush, and George Manush, Earle Manush and Harry Manush who are all presumed to be brothers as well.
The Brazilian national team for the 1995 Intercontinental Cup featured five members of the Matumoto family. Silvio Matumoto started at shortstop and his brother Douglas Matumoto was a backup at 3B and P. Cousin Jô Matumoto (a future minor leaguer) played first base and pitcher, cousin Edson Matumoto was a backup outfielder and cousin William Matumoto started at the hot corner.
Donzell McDonald and Darnell McDonald were both major league outfielders. Their brother Darin McDonald and father Donzell McDonald Sr. played in the minor leagues, while their cousin James McDonald followed them to the majors.
Jack McKeon managed in the major leagues for 15 years and was also a long-time general manager. His son Kasey McKeon played pro ball and son Kelly McKeon was a scout as well. Jack's brother Bill McKeon played in the minors. Jack's son-in-law Greg Booker was a major league pitcher for several years and Greg's son Zach Booker has played in the minors.
Manny Mota was one of the most acclaimed pinch-hitters in baseball history and a long-time star in the Dominican Winter League. His sons Jose Mota and Andy Mota played in the majors. A third son, Gary Mota won a MVP award in the South Atlantic League, while a 4th son, Tony Mota, played in the minors. Manny's cousin Jose Baez played in the majors.
Eddie Murray was a Hall of Fame first baseman. His brother Rich Murray also played in the major leagues, while older brother Charles Murray hit 121 minor league homers over 7 seasons. Two other brothers, Venice Murray and Leon Murray, also played in the minors.
Sam Narron played and managed in the majors while his brother Milt Narron hit .300 three times in six years in the minors. Their nephew Jerry Narron played and managed in the majors while Jerry's brother John Narron played and managed in the minors. Sam's grandson Sam Narron also played in the big leagues, and Jerry's son Connor Narron played in the minors.
Bill Narleski was a major league infielder for parts of two years. His son Ray Narleski was a top relief pitcher of the 1950s while another son, Ted Narleski, played in the minors. Another son, Bob, had a son, Bill Narleski, who played in the minors and for Team USA. Ray's son Steve Narleski reached AAA.
The most prominent Australian baseball family may have been the Nilssons. Dave Nilsson was the first major league All-Star from Australia. His brother Gary Nilsson played in the minors while brother Bob Nilsson was on the Australian national team. A fourth brother, Ron Nilsson, played in the Australian leagues. Bob's son Jay Nilsson has played in the minors as well as Gary's son Mitch Nilsson. Ron's son Daniel Nilsson played with the Australia Youth AA team in 2009.
Steve O'Neill was a major league catcher for 17 years, finishing among the AL OBP leaders three times and winning a World Series. He won another World Series as a manager. His brother Jack O'Neill caught five seasons in the majors; brother Jim O'Neill was an infielder for two years in The Show and Mike O'Neill pitched four seasons in the majors. Steve's son-in-law Hank Nowak played in the minors for almost a decade, reaching the highest classification of the time. Another son-in-law was Skeeter Webb, who played 12 seasons in the majors, including spending time under O'Neill's managerial reigns.
Tom Paciorek was a long-time major league outfielder. His brother John Paciorek was noted for the highest average ever in the majors (3 for 3, 1.000) while brother Jim Paciorek played in the majors and Japan. A fourth brother, Mike Paciorek, played in the minors. Tom's son Tom Paciorek Jr., John's sons Pete Paciorek and Mack Paciorek, and Jim's son Joseph Paciorek all played in the minor leagues.
Tony Peña was a five-time All-Star catcher in the majors who later managed in MLB. His brother Ramon Pena played briefly in the major leagues. Tony Pena Jr. was a starting shortstop when his father managed the Kansas City Royals. Tony's other son Francisco Peña has been a minor league catcher. Tony's nephew Rudy Pena peaked at AA.
Jim Penders I won four state titles as a high school coach in Connecticut, as did his son Jim Penders II. Jim the elder's other son, Tom Penders, played minor league baseball before becoming a college basketball coach. Jim the second's son Jim Penders III has been head coach at the University of Connecticut while his other son Rob Penders played in the minors and coached college ball. Aaron Quinn is the brother-in-law of Jim Penders III and Rob Penders and played in the minor leagues.
Brothers Pascual Pérez and Melido Pérez both pitched no-hitters that were later wiped from the books due to their being shortened by rain. A third brother, Carlos Pérez, played in the majors. Three other brothers - Valerio Pérez, Vladimir Pérez and Dario Pérez - played in the minors and Taiwan.
Bob Quinn was an executive in baseball for many years and served as a General Manager. His son John Quinn was general manager for two teams. John's sons Bob E. Quinn and John Quinn Jr. both were honored as Minor League Executive of the Year by The Sporting News while John's daughter Susan Quinn worked in the front office of the California Angels. John's other daughter Margo Quinn married Roland Hemond, another future General Manager. Roland and Margo's son Bob Hemond became a minor league executive and owner of the collegiate summer league team Hannibal Cavemen of the Prospect League. While another son, Jay Hemond worked as scouting coordinator for the Florida Marlins, was field manager for teams in two different independent leagues, and appeared in Field of Dreams as an actor, while also serving as the film's baseball trainer. He is currently Manager and Director of Baseball Operations for the collegiate summer league team Hannibal Cavemen of the Prospect League. His son Zane is his assistant in charge of game charts. Roland and Margo's elder daughter, Susan Hemond Dent, worked in baseball television production for the San Diego Padres, where she met and then married then Padre trainer, Dick Dent. Bob E. Quinn's son, Bob Quinn, Jr., is currently CFO for the Milwaukee Brewers.
Cal Ripken, Sr. was a long-time minor league player and manager who also managed the major league Baltimore Orioles. His brother Bill Ripken also played in the minor leagues. Two of his sons made it to the majors: Cal Ripken, who had a Hall of Fame career, and Billy Ripken, who was a major league infielder for a number of seasons. Cal Jr.'s son, Ryan Ripken, also played in the minor leagues.
Gary Roenicke was a power-hitting outfielder who played from 1976 to 1988. His brother, Ron Roenicke also played in the majors and managed the Milwaukee Brewers. Gary's son, Josh Roenicke, played in the majors as well; his other sons - Jarett Roenicke and Jason Roenicke - played/play in the minors, respectively. Ron's son Lance Roenicke also played in the minors.
Phil Roof played 15 years in the majors. His brother Gene Roof played in the majors as did cousin Eddie Haas. All three also became managers after their careers ended. Phil and Gene had several brothers in the minors - David Roof, Adrian Roof and Paul Roof, while Eddie's brother Lou Haas and sons Matt Haas and Danny Haas also played in the minor leagues. Gene's sons Shawn Roof, Eric Roof, and Jonathan Roof also played in the minors.
One of Cuba's elite families was the Sánchez clan. Wilfredo Sánchez was the first repeat batting champion in the Cuban Serie Nacional, the first player to take back-to-back MVPs and the first three-time MVP. His brother Fernando Sánchez also starred for many years in Cuba, retiring as the all-time hit leader; both played for the Cuban national team. Armando Sánchez, a third brother, won Rookie of the Year honors once and once led Cuba in triples. Arturo Sánchez, a fourth brother, played nine seasons in Cuba and a fifth brother, Felipe Sánchez, eked out three seasons.
Mitsuyoshi Sato was one of the top players in Brazil and later managed their national team for a number of years. His brother Shigetaka Sato played two seasons in NPB. Mitsuyoshi's sons Estevao Sato, Renan Sato and Reinaldo Sato all played for the Brazilian national team.
Dick Schofield Sr. was a major league infielder for almost two decades. His son Dick Schofield Jr. was in the majors for nearly as long. Dick Sr.'s son-in-law Jeff Gowan played a year in the minors. Gowan's wife Kim Schofield later married Dennis Werth, a major league infielder. Gowan and Kim Schofield's son Jayson Werth was a major league outfielder for several seasons.
Diego Segui pitched over 600 games in the majors and his son David Segui spent 15 seasons in the major leagues. Diego's brother Dario Segui and son Dan Segui played in the minors as did David's son Cory Segui.
John Shelby played for 11 seasons and later coached in the majors. His sons John Shelby III and Jeremy Shelby also played in the minors and JaVon Shelby was drafted in 2016. John II's nephews Josh Harrison and Vince Harrison have played pro ball, Josh making it to the majors in 2011.
Myril Hoag was an outfielder on the New York Yankees in the Babe Ruth/Joe DiMaggio era. His father Tracy Hoag had played in the Pacific Coast League. Hoag's nephew Sam Stassi played in the minors, as did Sam's nephew Jim Stassi. Jim Stassi's sons Max Stassi and Brock Stassi made it to the majors.
George Steinbrenner was the long-time owner of the New York Yankees, a role in which his sons Hank Steinbrenner and Hal Steinbrenner succeeded him. George's son-in-laws Joe Molloy and Stephen Swindel also had ownership roles with the club.
Dickie Thon was an All-Star shortstop who once led the NL in triples. His grandfather Freddie Thon Sr. played briefly in the US and played and managed in Puerto Rico. Dickie's brother Frankie Thon was a minor league player, as were his nephew Freddie Thon and son Dickie Joe Thon; Frankie also was a scout.
Wayne Tolleson's brother, Mike Tolleson, played a year in the minors. His father, Jim Tolleson, played in the minors in the 1950s, and his son, Steve Tolleson, made the majors in 2010. His cousin Rick Adair pitched in the minors and has coached for many teams. Adair is a nephew of Art Fowler and Rick's son Travis Adair has played in the minors.
Jim Tracy played and managed in the majors. His father Jim Tracy Sr. was a minor league pitcher. His sons Chad S. Tracy and Brian Tracy followed him into the pros and another son, Mark Tracy, has also been drafted.
Mo Vaughn was the 1995 AL MVP and hit over 300 home runs in the majors. He was a cousin of Greg Vaughn, a four-time All-Star who also topped 300 career dingers. Greg's son Cory Vaughn has played in the minors. Greg is a cousin of Jerry Royster, who played and managed in the majors and was the first American to manage in the Korea Baseball Organization. Royster, in turn, was the uncle of Aaron Fuller, who peaked at AAA.
Han Urbanus was one of the greatest pitchers in the history of the Dutch Hoofdklasse, setting many records. Han's brother Charles Urbanus Sr. and his son Charles Urbanus Jr. both made the Dutch Baseball Hall of Fame. Han's other son Johan Urbanus was briefly in the Hoofdklasse. Charles Jr.'s son Nick Urbanus was the first member of the family to play pro ball in the US and was the third generation to win a MVP in the Hoofdklasse, when no other father-son combo had won a MVP in that league.
Yang/Chang/Chen (about 15)
The Amis people of Taiwan have produced a whole slew of professional baseball players who are all related. They include Chung-Shou Yang, Yao-Hsun Yang, Chien-Fu Yang, Tai-Shan Chang, Chih-Yuan Chen, Sen Yang, Tung-Yi Yang, Cheng-Wei Chang, Chih-Hao Chang and a few others.
Robin Yount was a Hall of Fame shortstop-center fielder. His brother Larry Yount pitched one game in the majors. Robin's sons Dustin Yount and Austin Yount both played in the minors, while Larry's son Cody Yount has also played minor league ball. Robin and Larry's niece Mackenzie Vandergeest has played for the US women's national team.
Eddie Zambrano was a major league outfielder. His brother Roberto Zambrano was a two-time MVP in the Venezuelan League and spent 12 years in AAA without a game in the majors. A third brother, Jose Zambrano, also played in AAA. Their nephew Rougned Odor made the majors in 2014; Rougned's brother (also named Rougned Odor) has played pro ball as well. Another uncle of Rougned Odor, Rouglas Odor, played and managed in the minors.