The Pittsburgh Alleghenys purchased Fred Dunlap from the Detroit Wolverines for $4000 or $5000. (Date given is approximate. Exact date is uncertain.)
The Philadelphia Athletics traded Fred Mann, Chippy McGarr, Jocko Milligan and $3,000 to the St. Louis Browns for Bill Gleason and Curt Welch.
The Brooklyn Grays purchased Doc Bushong from the St. Louis Browns for $4,500.
The Brooklyn Grays purchased Bob Caruthers from the St. Louis Browns for $8,250.
The Brooklyn Grays purchased Dave Foutz from the St. Louis Browns for $5,500.
The Kansas City Cowboys signed Charley Jones as a free agent.
Tommy McCarthy sent from Oshkosh (Northwestern) to the St. Louis Browns in an unknown transaction.
The Philadelphia Quakers released Tom Gunning.
The Philadelphia Athletics signed Tom Gunning as a free agent.
The Pittsburgh Alleghenys purchased Al Maul from the Philadelphia Quakers for $1,000.
The Pittsburgh Alleghenys purchased Billy Sunday from the Chicago White Stockings for $2,000. (Date given is approximate. Exact date is uncertain.)
The Kansas City Cowboys purchased Jim Donahue from the Brooklyn Bridegrooms for $7,000.
The Baltimore Orioles purchased Bert Cunningham from the Brooklyn Bridegrooms. (Date given is approximate. Exact date is uncertain.)
Tom Brown sent from the Indianapolis Hoosiers to the Boston Beaneaters in an unknown transaction.
The Kansas City Cowboys purchased Jumbo Davis from the Baltimore Orioles for $700.
The Boston Beaneaters purchased John Clarkson from the Chicago White Stockings for $10,000.
The Indianapolis Hoosiers purchased Con Daily from the Boston Beaneaters. (Date given is approximate. Exact date is uncertain.)
The Kansas City Cowboys purchased Sam Barkley from the Pittsburgh Alleghenys. (Date given is approximate. Exact date is uncertain.)
The Chicago White Stockings purchased Dad Clarke from Omaha (Western Association).
The Philadelphia Quakers traded Cupid Childs and cash to the Washington Nationals for Gid Gardner. Cupid Childs refused to report to his new team on May 6, 1888. Gid Gardner returned to original team on May 6, 1888. (Date given is approximate. Exact date is uncertain.)
The Kansas City Cowboys purchased Law Daniels from the Baltimore Orioles. (Date given is approximate. Exact date is uncertain.)
The Kansas City Cowboys purchased Henry Easterday from the Louisville Colonels for $1,200. (Date given is approximate. Exact date is uncertain.)
The Washington Nationals traded to the Philadelphia Quakers for unknown compensation. Cupid Childs refused to report to his new team on May 6, 1888. Gid Gardner returned to original team on May 6, 1888. (Date given is approximate. Exact date is uncertain.)
The Philadelphia Quakers traded to the Washington Nationals for unknown compensation. Cupid Childs refused to report to his new team on May 6, 1888. Gid Gardner returned to original team on May 6, 1888. (Date given is approximate. Exact date is uncertain.)
The Philadelphia Quakers purchased Ed Delahanty from Wheeling (Tri-State).
The Pittsburgh Alleghenys purchased Jake Beckley from St. Louis (Western Association) for $4,500.
The Boston Beaneaters released Jack Burdock.
The New York Giants traded Elmer Cleveland to the Pittsburgh Alleghenys for Art Whitney.
The Cleveland Blues purchased Cinders O'Brien from Lima (Tri-State) for $2,000.
The Louisville Colonels purchased John Ewing from Memphis (Southern).
The Philadelphia Quakers released Deacon McGuire.
Irv Ray sent from Salem (New England) to the Boston Beaneaters in an unknown transaction.
The Detroit Wolverines signed Deacon McGuire as a free agent.
Buffalo (International Association) purchased Ed Silch from the Brooklyn Bridegrooms.
The Brooklyn Bridegrooms signed Jack Burdock as a free agent.
The Kansas City Cowboys purchased Billy Hamilton from Worcester (New England).
The Detroit Wolverines released Deacon McGuire.
The Detroit Wolverines purchased Ted Scheffler from Manchester (New England).
The Brooklyn Bridegrooms purchased Oyster Burns from the Baltimore Orioles for $3500 or $4000.
The Cleveland Blues signed Deacon McGuire as a free agent.
The St. Louis Browns purchased Ice Box Chamberlain from the Louisville Colonels for $4000 or $5000.
The Chicago White Stockings released Willard Mains.
The Chicago White Stockings released George Borchers.
The Cleveland Blues purchased Bill McClellan from the Brooklyn Bridegrooms.
The Brooklyn Bridegrooms released Bill Holbert.
The Brooklyn Bridegrooms purchased Pop Corkhill from the Cincinnati Red Stockings for $3,500.
The Philadelphia Athletics purchased Frank Fennelly from the Cincinnati Red Stockings for $1,000.
The Philadelphia Athletics purchased Blondie Purcell from the Baltimore Orioles.
The Brooklyn Bridegrooms purchased Hub Collins from the Louisville Colonels for $4,500.
The Louisville Colonels released Reddy Mack.
The Philadelphia Athletics purchased Phenomenal Smith from the Baltimore Orioles for $1000 or $1500.
The Philadelphia Athletics purchased Lave Cross from the Louisville Colonels for $2500 to $3500. (Date given is approximate. Exact date is uncertain.)
The Boston Beaneaters purchased Charlie Bennett from the Detroit Wolverines for $30000 (estimate).
The Pittsburgh Alleghenys purchased Pete Conway from the Detroit Wolverines.
The Philadelphia Quakers purchased Sam Thompson from the Detroit Wolverines for $5,000.
The Philadelphia Athletics signed Jack Brennan as a free agent.
The Pittsburgh Alleghenys purchased Ned Hanlon from the Detroit Wolverines for $2,500.
The Cleveland Spiders purchased Ed Beatin from the Detroit Wolverines. (Date given is approximate. Exact date is uncertain.)
The Columbus Solons purchased Ned Bligh from the Cincinnati Red Stockings for $1,500.
The St. Louis Browns purchased Shorty Fuller from the Washington Nationals for $800. (Date given is approximate. Exact date is uncertain.)
The Columbus Solons purchased Al Mays from the Brooklyn Bridegrooms for $3,000.
The Boston Beaneaters released Joe Hornung.
Deacon McGuire sent from the Cleveland Spiders to ??? in an unknown transaction.
The Cleveland Spiders purchased Paul Radford from the Brooklyn Bridegrooms.
The Indianapolis Hoosiers signed Amos Rusie as a free agent.
The Boston Beaneaters released Pop Tate.
The Brooklyn Bridegrooms purchased Joe Visner from Hamilton (International Association).
The Columbus Solons purchased Bill Greenwood from the Baltimore Orioles for $600 to $1000. (Date given is approximate. Exact date is uncertain.)
The Columbus Solons purchased Jim McTamany from the Kansas City Cowboys for $1,000.
The Columbus Solons purchased Ed Daily from the Washington Nationals for $600.
The St. Louis Browns released Harry Lyons.
The Baltimore Orioles released George Walker.
The Indianapolis Hoosiers purchased Pretzels Getzien from the Detroit Wolverines.
The Boston Beaneaters returned Deacon White to the Detroit Wolverines following previous purchase.
The Pittsburgh Alleghenys purchased Deacon White from the Detroit Wolverines.
The Louisville Colonels purchased Red Ehret from the Kansas City Cowboys for $500.
The Philadelphia Athletics signed Ed Knouff as a free agent.
The Chicago White Stockings purchased Andy Sommers from the Boston Beaneaters for $500.
The Washington Nationals traded Jim Whitney to the Indianapolis Hoosiers for Egyptian Healy.