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- [S47624] 1940 census, Maine, Penobscot county, Year: 1940; Census Place: Springfield, Penobscot, Maine; Roll: m-t0627-01488; Page: 5B; Enumeration District: 10-120 (Reliability: 3).
- [S53672] Marriage index, Maine, Name: Walter E Thornton Gender: Male Residence: Springfield, ME Spouse's Name: Ethel E Moores Spouse's Gender: Female Spouse's Residence: Springfield, ME Marriage Date: 3 Jan 1926 Marriage Place: Maine, USA (Reliability: 3).
- [S53585] SSDI: Social Security Death Index, Name: Ethel Thornton Social Security Number: 006-58-5832 Birth Date: 23 Sep 1905 Issue Year: 1970 Issue State: Maine Last Residence: 04487, Springfield, Penobscot, Maine, USA Death Date: Sep 1982 (Reliability: 3).
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