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- [S46799] 1940 census, Illinois, Cook county, Year: 1940; Census Place: Chicago, Cook, Illinois; Roll: m-t0627-00979; Page: 6A; Enumeration District: 103-1836 (Reliability: 3).
- [S53585] SSDI: Social Security Death Index, Name: John A. Scanlan Social Security Number: 354-22-3966 Birth Date: 27 Jan 1932 Issue Year: Before 1951 Issue State: Illinois Death Date: 21 Oct 1995 (Reliability: 3).
- [S54127] Birth index, Illinois, Name: John Scanlan Birth Date: 27 Jan 1932 Birth Location: Cook County, IL File Number: 6003408 Archive Collection Name: Cook County Genealogy Records (Births) Archive repository location: Chicago, IL Archive repository name: Cook County Clerk (Reliability: 3).
- [S37707] 1930 census, Illinois, Cook county, Year: 1930; Census Place: Chicago, Cook, Illinois; Page: 36B; Enumeration District: 1395 (Reliability: 3).
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