The Colonial League was the name of two mid-level American minor baseball leagues. The first Colonial League was a Class C level league that existed from 1914 to 1915 as a minor league for the outlaw Federal League. The second Colonial League existed from 1947 through mid-July 1950. It was graded Class B, two levels below the major leagues, and featured teams based in Connecticut, New York and New Jersey
Though Charles Coppen was nominally the president of the Colonial League, Bannwart began to exert authority at the Colonial League offices. Later in the 1914 season, Bannwart drew anger when he attempted to make last-minute changes to the schedule designed to increase competitiveness in the standings and maximize profits at the box office.[6] Due to the backlash from the teams, the schedule was not changed.[7] The league was reported to have lost $22,000 ($669,209 in current dollar terms) in 1914.[8] After the season, Bannwart unsuccessfully petitioned the National Commission to reclassify the Colonial League as Class B.[9]
At the April 1915 league meeting, Coppen was re-elected as president and Bannwart was elected secretary. Walter S. Ward, the treasurer of the Brooklyn Tip Tops of the Federal League and son of George S. Ward, an owner of the Tip Tops, was elected as the league's treasurer.[10] Wanting to expand into Springfield, Massachusetts, and Hartford and New Haven, Connecticut, territory that belonged to the Eastern Association, the Colonial League reorganized itself as a farm system for the Federal League[11] and voluntarily withdrew itself from organized baseball.[12] The Colonial League struggled financially in 1915, and Bannwart's policies were blamed. The quality of baseball was deemed to be below the expected standards of a Class C league in part due to the salary maximums set by Bannwart, diminishing fan interest in the league.[13] In August 1915, Bannwart resigned from the Colonial League.[14] The league collapsed during the 1915-16 offseason.[15]
As the minors began to contract in the late 1940s, the Colonial League's days were numbered. It shut its doors on July 14, 1950, with only 80,000 fans reported to have attended games in the entire six-team circuit.
New Brunswick moved to Kingston on July 10. Playoffs: Port Chester 4 games, Waterbury 1. Poughkeepsie 4 games, Kingston 1. Finals: Port Chester 4 games, Poughkeepsie 1.