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- [S53672] Marriage index, Maine, Name: Gertrude M Lowe Gender: Female Residence: Rockland, ME Spouse's Name: Harold Hupper Spouse's Gender: Male Spouse's Residence: St George, ME Marriage Date: 8 Jan 1926 Marriage Place: Maine, USA (Reliability: 3).
- [S39405] 1930 census, Maine, Knox county, Year: 1930; Census Place: St George, Knox, Maine; Page: 4B; Enumeration District: 0019 (Reliability: 3).
- [S53585] SSDI: Social Security Death Index, Name: Harold Hupper Social Security Number: 006-32-0007 Birth Date: 27 Dec 1888 Issue Year: 1951 Issue State: Maine Death Date: Dec 1964 (Reliability: 3).
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