Transactions listed are from November 1 of previous year to April 1 of the following year.
The Pittsburg 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 Pittsburg Alleghenys purchased Al Maul from the Philadelphia Quakers for $1,000.
The Kansas City Cowboys purchased Jim Donahue from the Brooklyn Bridegrooms for $7,000. (Date given is approximate. Exact date is uncertain.)
The Pittsburg Alleghenys purchased Billy Sunday from the Chicago White Stockings for $2,000. (Date given is approximate. Exact date is uncertain.)
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 Kansas City Cowboys purchased Jim McTamany from the Brooklyn Bridegrooms. (Date given is approximate. Exact date is uncertain.)
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 Pittsburg 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 . 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 . 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 Pittsburg Alleghenys purchased Jake Beckley from St. Louis (Western Association) for $4,500.
The New York Giants traded Elmer Cleveland to the Pittsburg Alleghenys for Art Whitney.
The Cleveland Blues purchased Darby 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.
The Kansas City Cowboys purchased Billy Hamilton from Worcester (New England).
The Detroit Wolverines released Deacon McGuire.
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 Elton Chamberlain from the Louisville Colonels for $4000 or $5000.
The Cleveland Blues purchased Bill McClellan from the Brooklyn Bridegrooms.
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 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 Pittsburg Alleghenys purchased Pete Conway from the Detroit Wolverines.
The Philadelphia Quakers purchased Sam Thompson from the Detroit Wolverines for $5,000.
The Pittsburg 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.
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 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 Indianapolis Hoosiers purchased Charlie Getzien from the Detroit Wolverines.
The Boston Beaneaters returned Deacon White to the Detroit Wolverines following previous purchase.
The Pittsburg Alleghenys purchased Deacon White from the Detroit Wolverines.
The Louisville Colonels purchased Red Ehret from the Kansas City Cowboys for $500.
The Chicago White Stockings purchased Pete Sommers from the Boston Beaneaters for $500.
The Washington Nationals traded Jim Whitney to the Indianapolis Hoosiers for John Healy.