Transactions listed are from November 1 of previous year to April 1 of the following year.
The Philadelphia Phillies traded Jack Clements, Lave Cross, Tommy Dowd, Jack Taylor and $1,000 to the St. Louis Browns for Monte Cross, Red Donahue and Klondike Douglass.
The Pittsburgh Pirates traded Pink Hawley, Elmer Smith and $1,500 to the Cincinnati Reds for Bill Gray, Jack McCarthy, Billy Rhines, Pop Schriver and Ace Stewart.
The New York Giants traded Jim Donnelly, Ducky Holmes and $3,500 to the St. Louis Browns for Mike Grady and Fred Hartman.
The Brooklyn Bridegrooms traded George Shoch and $1,000 to the St. Louis Browns for Bill Hallman.
The Pittsburgh Pirates traded Joe Sugden to the St. Louis Browns for Morgan Murphy.
The Washington Senators traded Gene DeMontreville, Dan McGann and Doc McJames to the Baltimore Orioles for Doc Amole, Jack Doyle and Heinie Reitz.
The Pittsburgh Pirates traded Jim Hughey and $1,800 to the St. Louis Browns for Bill Hart.
The Chicago Orphans signed Frank Chance as a free agent.
The Louisville Colonels traded Bill Hill to the Cincinnati Reds for Red Ehret, Dummy Hoy and Claude Ritchey.
The Brooklyn Bridegrooms purchased Tommy Tucker from the Washington Senators for $800.
The Chicago Orphans loaned George Decker to the St. Louis Browns.
The Boston Beaneaters released Jim Sullivan.
The Washington Senators released Roger Bresnahan.
The Louisville Colonels purchased Cooney Snyder from the Washington Senators for $500.
The Brooklyn Bridegrooms sent John Anderson to the Washington Senators as part of a conditional deal.
Detroit (Western) purchased John Ganzel from the Pittsburgh Pirates.
The Pittsburgh Pirates purchased Frank Bowerman from the Baltimore Orioles for $2,500.
The Boston Beaneaters loaned Bill Keister to Rochester (Eastern).
The St. Louis Browns traded Ducky Holmes and cash to the Baltimore Orioles for Joe Quinn and Jake Stenzel.
The Pittsburgh Pirates released Steve Brodie.
The Pittsburgh Pirates released Morgan Murphy.
The Louisville Colonels purchased Malachi Kittridge from the Chicago Orphans for $750.
The Philadelphia Phillies signed Dave Fultz as a free agent.
Columbus (Western) traded Sam Mertes and a player to be named to the Chicago Orphans for Buttons Briggs and Danny Friend.
The Louisville Colonels purchased Nick Altrock from Grand Rapids (Interstate).
The St. Louis Browns released George Decker. (Date given is approximate. Exact date is uncertain.)
The Louisville Colonels signed George Decker as a free agent. (Date given is approximate. Exact date is uncertain.)
The Philadelphia Phillies signed Morgan Murphy as a free agent. (Date given is approximate. Exact date is uncertain.)
The Louisville Colonels purchased Tom Stouch from Pawtucket (New England). (Date given is approximate. Exact date is uncertain.)
The New York Giants purchased Jack Doyle from the Washington Senators for $2,000. (Date given is approximate. Exact date is uncertain.)
The New York Giants purchased Jack Boyle from the Philadelphia Phillies for $1,000.
The Louisville Colonels purchased Harry Davis from the Pittsburgh Pirates.
The Louisville Colonels purchased Frank Todd from Pawtucket (New England). (Date given is approximate. Exact date is uncertain.)
Kid Elberfeld sent from the Philadelphia Phillies to Detroit (Western) in an unknown transaction. (Date given is approximate. Exact date is uncertain.)
The New York Giants released Dave Zearfoss.
Bill Keister returned to the Boston Beaneaters by Rochester (Eastern) as part of earlier loan.
Fall River (New England) sent Hi Ladd to the Boston Beaneaters as part of a conditional deal.
The St. Louis Browns purchased Tommy Tucker from the Brooklyn Bridegrooms.
The Boston Beaneaters released Bill Keister.
The Boston Beaneaters signed General Stafford as a free agent.
The Boston Beaneaters signed Dave Pickett as a free agent.
The Boston Beaneaters signed Kitty Bransfield as a free agent.
The Chicago Orphans purchased Jack Taylor from Milwaukee (Western).
The Pittsburgh Pirates purchased Willie Clark from the New York Giants.
The Pittsburgh Pirates released Frank Killen. (Date given is approximate. Exact date is uncertain.)
The Chicago Orphans purchased Harry Wolverton from Columbus (Western).
The St. Louis Browns purchased Jack Stivetts from the Boston Beaneaters.
The New York Giants returned Jack Boyle to the Philadelphia Phillies following previous purchase.
The St. Louis Browns purchased Tom Kinslow from the Washington Senators.
The Boston Beaneaters released Dave Pickett.
The Louisville Colonels drafted Harry Croft from Auburn (New York State) in the 1898 rule 5 draft. (Date given is approximate. Exact date is uncertain.)
The Brooklyn Bridegrooms purchased Harry Howell from Meridan (Connecticut State).
St. Paul (Western) traded Bill Phyle to the Chicago Orphans for Frank Isbell.
The Louisville Colonels drafted Rube Waddell from Detroit (Western) in the 1898 rule 5 draft.
The Cleveland Spiders purchased Chick Fraser from the Louisville Colonels. (Date given is approximate. Exact date is uncertain.)
Hartford (Atlantic) sent Stub Smith to the Boston Beaneaters as part of a conditional deal.
The Louisville Colonels released Harry Davis.
The Louisville Colonels purchased Billy Taylor from Grand Rapids (Interstate).
The Washington Senators returned John Anderson to the Brooklyn Bridegrooms as part of a conditional deal.
The Washington Senators loaned Butts Wagner to the Brooklyn Bridegrooms.
The Philadelphia Phillies signed Harry Davis as a free agent.
The Cincinnati Reds traded Bill Hill and $3,500 to the St. Louis Browns for Jack Taylor.
Butts Wagner returned to the Washington Senators by the Brooklyn Bridegrooms as part of earlier loan. (Date given is approximate. Exact date is uncertain.)
The Washington Senators traded Heinie Reitz to the Pittsburgh Pirates for Jack O'Brien, Dick Padden and Jimmy Slagle.
The Philadelphia Phillies purchased Chick Fraser from the Cleveland Spiders for $900 or $1000.
The Cincinnati Reds purchased Kip Selbach from the Washington Senators for $5,000.
The Louisville Colonels drafted Deacon Phillippe from Minneapolis (Western) in the 1899 rule 5 draft.
The Boston Beaneaters purchased Oscar Streit from Dayton (Interstate).
The Louisville Colonels loaned Rube Waddell to Columbus-Grand Rapids (Western).
The Pittsburgh Pirates purchased Jimmy Williams from Kansas City (Western).
Cy Young assigned the Cleveland Spiders to the St. Louis Perfectos.
The Chicago Orphans sent Walt Woods to the Louisville Colonels as part of a conditional deal.
The Baltimore Orioles traded Gene DeMontreville to the Chicago Orphans for Bill Dahlen.
The Boston Beaneaters purchased Boileryard Clarke from the Baltimore Orioles.
Bill Dahlen assigned the Baltimore Orioles to the Brooklyn Superbas.
The Cleveland Spiders purchased Mike Griffin from the Brooklyn Superbas for $4,000.
Harry Howell assigned the Brooklyn Superbas to the Baltimore Orioles.
Frank Bates assigned the Cleveland Spiders to the St. Louis Perfectos.
Kid Carsey assigned the St. Louis Perfectos to the Cleveland Spiders.