On March 25, 1903, and on April 1, 1903, meetings were held which resulted in forming the six–team Hudson River League for the 1903 season.
The Hudson Marines, Kingston Colonials, Newburgh Taylor-mades, Poughkeepsie Colts and Saugerties teams joined Paterson in beginning league play on May 13, 1904.
[1] The Invaders ended the 1905 regular season with a record of 62–51, playing under returning manager Dick Cogan.
Paterson ended the season in first place with a 64–47 record, led by manager Dick Cogan.
On September 9, 1906, the Invaders were 1.0 game ahead of the second place Poughkeepsie Colts when the Hudson River League ceased play for the season.
The Hudson River league was down to four remaining teams, after the Kingston Colonial Colts had joined Paterson by folding in early June.