| Sources |
- [S483] Ancestry.com, New York Passenger Lists, 1820-1957, (Name: Name: Ancestry.com Operations, Inc.; Location: Provo, UT, USA; Date: 2010;;), Year: 1934; Arrival: New York, New York; Microfilm Serial: T715, 1897-1957; Microfilm Roll: Roll 5534; Line: 28; Page Number: 112.
Record for Clifford Ladd Prosser
http://search.ancestry.com/cgi-bin/sse.dll?db=nypl&h=2017458495&indiv=try
- [S62] Ancestry.com, 1940 United States Federal Census, (Name: Name: Ancestry.com Operations, Inc.; Location: Provo, UT, USA; Date: 2012;;), Year: 1940; Census Place: Urbana, Champaign, Illinois; Roll: T627_766; Page: 11A; Enumeration District: 10-39.
Record for Clifford Ladd Prosser
http://search.ancestry.com/cgi-bin/sse.dll?db=1940usfedcen&h=139038569&indiv=try
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