Tri County League was an Independent League

1911     Aberdeen Md, Elk Mills Md, Eklton Md, Harve de Grace Md, Northeast Md, Oxford Md, Perryville Md, Rising Sun Md

1915     Dover NJ, Hackettstown, NJ, Newton NJ, Washington NJ

1916     Dover NJ, Hackettstown, NJ, Newton NJ, Washington NJ

1917     Dover NJ, Madison NJ, Morristown NJ, Newton-Ironside NJ

1917     Beaver Dam Wi, Berlin Wi, Fox Lake Wi, Horteow Wi, Juneau Wi, Waupun Wi

1922     Kewanna IL, Royal Centre IL, Star City IL, Winamac IL

1925     Canton Me, C.O.F. Me. Dixfield Me, I.P. Phillips, Rumford. During the Season, Rumford team move to Weld

1932     Byersville NY, Cuylerville NY, Gainesville NY, Lakeville NY, Pavilion NY, Portage NY, Silver Springs NY, Wyoming NY,

1933     Curriers NY and Pike NY enter the league and Byersville, Lakeville, Poratgeville and Silver Springs NY has left the League

1934     Attica NY, Avon NY, Caledonia NY, Cuylerville NY, Le Roy NY, Mumford NY, Perry NY, Warsaw NY

1935     Cromwell Ct, East Berlin Ct, Middletown Ct, Portland Ct, South Meriden Ct, Wethersfield Ct

1940     Ekton Va, Shenadoah Va,  Stanardsville Va, Stanley Va,

1941     Front Royal Va, Strasburg Va, Woodstock Va, Winchester Va,

1963     Charles Town WV, Gainesboro Va, Gerradstown WV, Sleepy Creek, Strasburg Va, Winchester VA

1964     Gainesboro Va, Leetown WV, Martinsburg WV, Winchester Va, 

1965     Shepherdstown WV and Leetown enter the League

1966     Bakerton WV and Great Cacapon WV enter the League

NOTE 1 - Bold means Unknown Location