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- [S2537] 1940 U.S. census, Digital images (National Archives and Records Administration, n.d.), T627.
- [S2453] 1930 U.S. Federal Population Census, Bradford, McKean Co., PA.
- [S1760] John Joseph, Jr. Dudick Crawford Dr., Columbus, Ohio interviewed by Linda Coate Dudick 1978- In Linda Coate files (D-7).
- [S1135] Ancestry.com, 1940 United States Federal Census, (Name: Ancestry.com Operations, Inc. Date:2012 Place:Provo, UT, USA;), Year: 1940; Census Place: Bradford, McKean, Pennsylvania; Roll: m-t0627-03568; Page: 3A; Enumeration District: 42-4, 1,2442::0.
- [S2701] Obituary for Floyd Carter dated Thursday March 8, 2001 (The Bradford, PA Era).
- [S21] Ancestry.com, U.S., Find a Grave Index, 1600s-Current, (Name: Ancestry.com Operations, Inc.; Location: Lehi, UT, USA; Date: 2012;).
- [S240] 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: Bradford, McKean, Pennsylvania; Roll: 1169; Page: 12; Enumeration District: 42-9.
- [S2609] The Bradford Era (www.ancestry.com).
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