At the beginning of the season, in May, the team included George Wilson, Sol White, Charlie Grant, Joseph "Cannon Ball" Miller, William Binga, Chappie Johnson, Peter Burns, Sherman Barton, Harry Buckner, and Billy Holland, with John W. Patterson managing. Patterson's office that year is listed as 3030 State Street in Chicago, Illinois.
In 1900 no championship was played and the Unions and Columbia Giants both claimed to be number one. Home Run Johnson went to the Union Giants but was replaced by future Hall-of-Famer Sol White. Pitcher Billy Holland also joined the team that year.