From BR Bullpen
There have been five different entries known as the Tri-State League and they have varied widely in composition.
The first Tri-State League operated in 1887-1890. Ohio supplied most of the teams, West Virginia supplied one, while Michigan was the third state from 1887-1888, and Pennsylvania was the third state in 1890. Tri-State League (OH-WV-MI-PA)
The second such circuit had teams in Pennsylvania, New Jersey and Delaware and ran from 1904-1906 as an independent circuit and 1907-1914 as a class B league. The heart of the league came from Pennsylvania. Tri-State League (PA-DE-NJ)
Another class D Tri-State operated in 1925-1926, this one being housed in Arkansas, Mississippi and Tennessee. Tri-State League (AR-MS-TN)
In 1946, the longest-running Tri-State kicked into action in the explosion of leagues after World War II. Another class B league, this one lasted ten years, a longer lifespan than many other post-WW II loops. Tennessee, North Carolina and South Carolina were the three states involved this time. Tri-State League (NC-SC-TN)
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