Matches in DBpedia 2014 for { ?s <http://dbpedia.org/property/firstseason> ?o. }
- Abbeville_Athletics firstseason "1920".
- Abbeville_Red_Sox firstseason "1936".
- Aberdeen_Black_Cats firstseason "1903".
- Aberdeen_Pheasants firstseason "1920".
- Abilene_Blue_Sox firstseason "1946".
- Adelaide_Eagles firstseason "1986".
- Alameda_baseball_team firstseason "1906".
- Albany-Colonie_Diamond_Dogs firstseason "1988".
- Albany-Decatur_Twins firstseason "1904".
- Albany_A's firstseason "1983".
- Albany_Polecats firstseason "1992".
- Albuquerque_Dukes firstseason "1915".
- Alexander_City_Millers firstseason "1947".
- Alexandra_Hills_Australian_Football_Club firstseason "1992".
- Algodoneros_de_San_Luis firstseason "?".
- Allentown_Brooks firstseason "1935".
- Allentown_Cardinals firstseason "1944".
- Allentown_Chiefs firstseason "1957".
- Allentown_Red_Sox firstseason "1958".
- Altoona_Rail_Kings firstseason "1996".
- Amarillo_Gold_Sox firstseason "1939".
- Americus_(baseball_team) firstseason "1906".
- Americus_Arrows firstseason "2002".
- Anaheim_Aces firstseason "1941".
- Andalusia_Rams firstseason "1962".
- Anniston_Nobles firstseason "1904".
- Anniston_Rams firstseason "1938".
- Argenta_Shamrocks firstseason "1908".
- Arizona_League_Cardinals firstseason "1989".
- Arizona_League_Mexico firstseason "1998".
- Arizona_League_Rockies firstseason "1992".
- Artesia_Dodgers firstseason "1951".
- Astros_(gridiron_team) firstseason "1995".
- Atlanta_Crackers firstseason "1884".
- Austin_Braves firstseason "1947".
- Azul_(baseball) firstseason "1904".
- Bacharach_Giants firstseason "1916".
- Baltimore_Black_Sox firstseason "1916".
- Baltimore_Elite_Giants firstseason "1920".
- Baltimore_Orioles_(minor_league) firstseason "1903".
- Barooga_Football_Club firstseason "1894".
- Baseball_City_Royals firstseason "1988".
- Bassett_Furnituremakers firstseason "1935".
- Batesville_Pilots firstseason "1936".
- Batesville_White_Sox firstseason "1936".
- Battle_Creek_Yankees firstseason "2003".
- Beatrice_Blues firstseason "1922".
- Bellingham_Mariners firstseason "1973".
- Bendigo_Pioneers firstseason "1993".
- Bentonville_Mustangs firstseason "1934".
- Berkshire_Brewers firstseason "1976".
- Berlin_Busy_Bees firstseason "1911".
- Bessemer_Pipemakers firstseason "1904".
- Big_Spring_Bombers firstseason "1928".
- Birmingham_A's firstseason "1967".
- Birmingham_Black_Barons firstseason "1920".
- Bisbee-Douglas_Copper_Kings firstseason "1947".
- Bisbee_Bees firstseason "1928".
- Blytheville_Giants firstseason "1910".
- Boise_Yankees firstseason "1952".
- Bondi_Raiders firstseason "1983".
- Borger_Gassers firstseason "1939".
- Bowling_Green_Barons firstseason "1939".
- Brewton_Millers firstseason "1940".
- Broadview_Hawks firstseason "1989".
- Brooklyn_Royal_Giants firstseason "1905".
- Burnie_Dockers_Football_Club firstseason "1995".
- Burnie_Hawks_Football_Club firstseason "1987".
- Cairo_Egyptians firstseason "1897".
- Calder_Cannons firstseason "1995".
- Calgary_Cannons firstseason "1985".
- Cambridge_Dodgers firstseason "1922".
- Cananore_Football_Club firstseason "1908".
- Canton-Akron_Indians firstseason "1989".
- Cape_Fear_Crocs firstseason "1997".
- Carmelita_(baseball) firstseason "1904".
- Centurions_(gridiron_team) firstseason "2007".
- Charleston_Senators firstseason "1910".
- Chicago_American_Giants firstseason "1911".
- Chicago_Giants firstseason "1910".
- Chico_Heat firstseason "1997".
- Cincinnati_Tigers firstseason "1934".
- Clarksdale_Planters firstseason "1934".
- Clemson_Tigers_men's_basketball firstseason "1911".
- Clemson_Tigers_women's_basketball firstseason "1975".
- Cleveland_Buckeyes firstseason "1942".
- Clinton_Owls firstseason "1937".
- Club_Fé firstseason "1904".
- Coalinga_Tigers firstseason "1910".
- Columbia_Reds firstseason "1936".
- Columbus_Catfish firstseason "2003".
- Columbus_Confederate_Yankees firstseason "1964".
- Columbus_Foxes firstseason "1909".
- Columbus_Red_Birds firstseason "1931".
- Connecticut_Defenders firstseason "1995".
- Cooleemee_Cards firstseason "1937".
- Cordele_Reds firstseason "1936".
- Cuban_Stars_(East) firstseason "1916".
- Cuban_Stars_(West) firstseason "1907".
- Dallas_Rangers firstseason "1958".