Competitors for 1930 USA Swimming National Championships (Outdoor/LCM)
| Athlete | Country | Sports | Date of birth |
|---|---|---|---|
| Catherine Ames |  USA |
SWI | |
| John K. Brines | USA |
SWI | |
| Austin Clapp | USA |
SWI | 8 November 1910 |
| Buster Crabbe | USA |
SWI | 7 February 1908 |
| Betty Cramer | USA |
SWI | |
| Jennie Cramer | USA |
SWI | |
| Lester Fissler | USA |
SWI | |
| Agnes Geraghty | USA |
SWI | 26 November 1907 |
| Marian Gilman | USA |
SWI | 2 July 1914 |
| Olive Hatch-Voigt | USA |
SWI | |
| Margaret Hoffman | USA |
SWI | |
| Eleanor Holm | USA |
SWI | 6 December 1913 |
| Bob Howlett | USA |
SWI | |
| Maiola Kalili | USA |
SWI | 3 November 1909 |
| Norman Kettering | USA |
SWI | |
| George Kojac | USA |
SWI | 2 March 1910 |
| Lisa Lindstrom | USA |
SWI | 7 August 1912 |
| Marjorie Lowe | USA |
SWI | |
| Helene Madison | USA |
SWI | 19 June 1913 |
| Josephine McKim | USA |
SWI | 4 January 1910 |
| John Paulsen | USA |
SWI | 15 February 1914 |
| Ray Ruddy | USA |
SWI | 31 August 1911 |
| Albert Schwartz | USA |
SWI | 21 December 1907 |
| Bud Shields | USA |
SWI | |
| Leonard Spence | USA |
SWI | 23 May 1909 |
| Frank Walton | USA |
SWI | |
| Alberto Zorrilla |  ARG |
SWI | 6 April 1906 |