| Sources |
- [S11014] Cemetery index, Swan Point Cemetery, Providence, Providence, Rhode Island.
- [S23975] 1910 census, Rhode Island, Providence county, Year: 1910; Census Place: Providence Ward 1, Providence, Rhode Island; Roll: T624_1441; Page: 6A; Enumeration District: 0146 (Reliability: 3).
- [S53585] SSDI: Social Security Death Index, Name: Frederick Jenckes SSN: 056-03-3997 Last Residence: 04915 Belfast, Waldo, Maine, USA BORN: 28 Apr 1908 Died: Aug 1973 State (Year) SSN issued: New York (Before 1951) (Reliability: 3).
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