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- [S2745] Ancestry.com, U.S., Find A Grave Index, 1600s-Current, (Name: Ancestry.com Operations, Inc.; Location: Provo, UT, USA; Date: 2012;).
Record for Robert P. Montgomery
https://search.ancestry.com/cgi-bin/sse.dll?db=60525&h=68621689&indiv=try
- [S613] Ancestry.com, 1940 United States Federal Census, (Name: Online publication - Provo, UT, USA: Ancestry.com Operations, Inc., 2012.Original data - United States of America, Bureau of the Census. Sixteenth Census of the United States, 1940. Washington, D.C.: National Archives and Records Administration, 1940. T627;), Year: 1940; Census Place: New Castle, Delaware; Roll: m-t0627-00546; Page: 13B; Enumeration District: 2-58.
Record for Robert P Montgomery
https://search.ancestry.com/cgi-bin/sse.dll?db=2442&h=33856&indiv=try
- [S3831] Ancestry.com, 1950 United States Federal Census, (Name: Ancestry.com Operations, Inc.; Location: Lehi, UT, USA; Date: 2022;), National Archives at Washington, DC; Washington, D.C.; Seventeenth Census of the United States, 1950; Year: 1950; Census Place: 15, New Castle, Delaware; Roll: 707; Page: 7-6; Enumeration District: 2-115.
Record for Robert P Montgomery
https://search.ancestry.com/cgi-bin/sse.dll?db=62308&h=1015662&indiv=try
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