| Title | 1930 US Census - Household of Frank E. Knuth | |
| Date | 3 April 1930 | |
| Media | Ancestry.com digital Image | |
| Page | sheet 3B, lines 71-72 | |
| Locality | ED 19-574, SD 19, Assembly District 72, Los Angeles, Los Angeles County, California, USA | |
| Media Type | Census | |
| Source ID | S231 | |
| Linked to Individuals: 2 | Mary O. Harms Frank Emil Knuth | |