NA-S # BAS BES BLS BOS BRS CHS CLS FWS HAS IOS MMS NHS NYS NJS PCS PHS PWS RKS SLS STS TRS WAS WDS NA-S  
1871 9       Boston   Chicago Cleveland Fort Wayne           New York       Philadelphia   Rockford     Troy   Washington 1871  
          Red Stockings   White Stockings Forest Citys-C Kekiongas         Mutuals     Athletics   Forest Citys-R     Haymakers   Olympics    
1872 11 Baltimore Brooklyn E   Boston Brooklyn A   Cleveland       Middletown   New York       Philadelphia         Troy Washington N Washington O 1872                  
    Canaries Eckfords   Red Stockings Atlantics   Forest Citys       Mansfields   Mutuals     Athletics         Haymakers Nationals Olympics                    
1873 9 Baltimore C   Baltimore M Boston Brooklyn               New York   Elizabeth   Philadelphia A Philadelphia W         Washington (2)   1873  
    Canaries   Marylands Red Stockings Atlantics               Mutuals Resolutes   Athletics Whites         Blue Legs      
1874 8 Baltimore     Boston Brooklyn Chicago     Hartford        New York       Philadelphia A Philadelphia W             1874                  
    Canaries     Red Stockings Atlantics White Stockings     Dark Blues        Mutuals     Athletics Whites                                
1875 13       Boston Brooklyn Chicago     Hartford  Keokuk    New Haven   New York     Philadelphia C Philadelphia A Philadelphia W   St. Louis B St. Louis R   Washington (3)   1875  
          Red Stockings-B Atlantics White Stockings     Dark Blues  Westerns   Elm Citys  Mutuals   Centennials Athletics Whites   Brown Stockings   Red Stockings-S   Nationals      
          to NL   to NL                                      
Today Braves Today Cubs
  Inaugural or first season in league at that location
  City name changed in computer game from previous year
  Red Text Change nickname to match actual           
(2) - Second unique franchise in city
(3) - Third unique franchise in city
Teams with same nickname have first letter of City appended to name