| Washington, District of Columbia: National Archives and Records Administration (NARA) | |
| 6 May 1940 | |
| Microfilm | |
| Justice Precinct 1, San Antonio City, Bexar County, Texas | |
| Census | |
| Sixteenth Census of the United States, 1940 | |
| publication T627, roll 4207, E.D. 259-191, sheet 15A | |
| US-1940-1s | |
| Image (JPG): William Robert Herndon | |
| S922 | |
| [US-1940-1s] "Justice Precinct 1, San Antonio City, Bexar County, Texas," Sixteenth Census of the United States, 1940, Washington, District of Columbia: National Archives and Records Administration (NARA), publication T627, roll 4207, E.D. 259-191, sheet 15A. | |
| Margaret F Johnson Wilburn A Winterrowd |