 
| Type | Valeur | 
|---|---|
| Titre | Ringo in entry for Mary Enna Ringo, "California Death Index, 1940-1997" | 
| Personnes | 
|---|
|  Martin Ringo OT01 (Peters Ringo) | 
| "California Death Index, 1940-1997," database, FamilySearch (https://familysearch.org/ark:/61903/1:1:VPQ9-44W : 26 November 2014), Ringo in entry for Mary Enna Ringo, 27 Jun 1941; Department of Public Health Services, Sacramento. |