| Sources |
- [S631] Ancestry.com, 1930 United States Federal Census, (Name: Ancestry.com Operations Inc; Location: Provo, UT, USA; Date: 2002;), Year: 1930; Census Place: Pettis, Platte, Missouri; Page: 16B; Enumeration District: 0015; FHL microfilm: 2340952.
Record for Chas E Rock
https://search.ancestry.com/cgi-bin/sse.dll?db=6224&h=122385711&indiv=try
- [S614] Ancestry.com, 1940 United States Federal Census, (Name: Ancestry.com Operations, Inc.; Location: Provo, UT, USA; Date: 2012;), Year: 1940; Census Place: Pettis, Platte, Missouri; Roll: m-t0627-02141; Page: 21A; Enumeration District: 83-16.
Record for Charles E Rock
https://search.ancestry.com/cgi-bin/sse.dll?db=2442&h=91186808&indiv=try
- [S130] Ancestry.com, U.S., Find A Grave Index, 1600s-Current, (Name: Ancestry.com Operations, Inc.; Location: Provo, UT, USA; Date: 2012;).
Record for Della Virginia Rock
https://search.ancestry.com/cgi-bin/sse.dll?db=60525&h=201914741&indiv=try
- [S486] Ancestry.com, Missouri, Birth Records, 1847-1910, (Name: Ancestry.com Operations, Inc.; Location: Provo, UT, USA; Date: 2007;), Missouri State Archives; Jefferson City, MO, USA; Birth Index, 1920-1999.
Record for Della Virginia Rock
https://search.ancestry.com/cgi-bin/sse.dll?db=1170&h=13579075&indiv=try
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