They were unaffiliated with any major league team, and played at the Class C level.
[1] In 1905, the Boise Infants continued play in the Pacific National League.
[4] The Boise Irrigators later played in the Union Association (1911, 1914)[5][6] and Western Tri-State League (1912–1913).
The team competed through the 1951 season, except for three years during World War II when the league did not operate.
Boise's team then became a Milwaukee affiliate from 1955 through 1963, operating as the Braves.