The Amsterdam–Gloversville–Johnstown Jags began play as members of the 1902 Class BNew York State League. The "Jags" moniker derives from the first letter of each city. The 1902 Amsterdam–Gloversville–Johnstown Jags finished last in the New YorkState League. The Jags had a record of 29–72, to finish 8th in the league under the direction of Manager Tommy Dowd. The team played at Guy Park in Amsterdam. The team switched monikers in 1903, as the Amsterdam–Gloversville–Johnstown Hypens continued play in the New York State League. The 1903 Hyphens finished 41–82 8th in the New York State League. The team Managers were Doc Hazelton, Dan Shannon and Clyde Williams. The team ballpark was Amsterdam's Guy Park. The 1904 Hyphens began playing at both JAG Park in Gloversville and Guy Park in Amsterdam. The 1904 Amsterdam-Johnstown-Gloversville Hyphens finished 65–61, 4th in the New York State League under Manager Howard Earl. The Amsterdam–Gloversville–Johnstown Jags won the 1905 New York State League Championship. The Jags finished 71–51 1st in the NYSL, 0.5 games ahead of the 2nd place Syracuse Stars. Manager Howard Earl led the team to the championship. The 1906 Amsterdam–Gloversville–Johnstown Jags had a regular season record of 66–68. The team was 5th in the New York State League standings under Manager Howard Earl. The Amsterdam–Gloversville–Johnstown Jags finished last in the 1907 New York State League. Their record of 39–95, left the team 8th in the league under Manager Howard Earl. The Amsterdam–Gloversville–Johnstown Jags relocated in 1908. The Jags began the season with a 1–8 record, when they dropped Amsterdam from their franchise on May 18, 1908. The Gloversville-Johnstown Jags were 11–54 On July 22, 1908, when the franchise relocated to Elmira, New York, where they finished the season as the Elmira Colonels. The team finished 8th with a 36–104 overall record in 1908. The Managers were Hank Ramsey and Louis Bacon.
The ballparks
In Gloversville, New York the team played at JAG Park. The ballpark was rebuilt and known as "A.J.& G Baseball Park" beginning in 1906. JAG Park was designed by F.L. Comstock and built by E.A. Satterlee for $3,088. The ballpark was built on six acres of land on Harrison Street, midway between Gloversville, New York and Johnstown, New York. Today, the ballpark is called Parkhurst Field and is still in use. In Amsterdam, New York, the team played at Guy Park.Today, the site is the Guy Park State Historical Site.
