the names of the Mutuals, Harlems and Baltics, of New York, the Unions, of Morrisania, and the Continentals, of Brooklyn, might be quoted, but, with the exception of the Mutuals and Unions, none of these clubs ever attained that mark of excellence in play gained by the more famous organizations first referred to.
Before the decade of the fifties had ended, the game of Base Ball had reached a stage of popularity which called into being so many clubs—all of which, with the exception of the Libertys, of New Brunswick, N. J., were located within the present city limits of Greater New York—that a new epoch in the history of the game followed as a natural sequence in the order of development.
Following is a list of clubs organized up to and including 1857:
| Clubs | Organized | Location of Grounds |
| Knickerbocker | September 23, 1845 | Hoboken |
| Gotham | Spring of 1852 | Harlem |
| Eagle | April, 1854 | Hoboken |
| Empire | October 23, 1854 | Hoboken |
| Excelsior | December 8, 1854 | South Brooklyn |
| Putnam | May, 1855 | Williamsburgh |
| Newark | May 1, 1855 | Newark |
| Baltic | June 4, 1855 | New York |
| Eckford | June 27, 1855 | Greenpoint |
| Union | July 17, 1855 | Morrisania |
| Atlantic | August 14, 1855 | Williamsburgh |
| Atlantic | August, 1855 | Jamaica, L. I. |
| Continental | October, 1855 | Williamsburgh |
| Harlem | March, 1856 | New York |
| Enterprise | June 26, 1856 | Williamsburgh |
| Active | October, 1856 | Hoboken |
| Star | October, 1856 | South Brooklyn |
| Independent | January, 1857 | New York |
| Liberty | March 1, 1857 | New Brunswick, N. J. |
| Metropolitan | March 4, 1857 | New York |
| Champion | March 14, 1857 | New York |
| Hamilton | March 23, 1857 | Brooklyn |
| St. Nicholas | April 28, 1857 | Hoboken |
| Mutual | June 24, 1857 | Williamsburgh |
