Mary M. McKinney was recorded in the 1860 census of Cumberland Township, Adams County, Pennsylvania, as a four-year-old girl born in Pennsylvania. She was listed in dwelling 481, family 537, the household of farmer John Mahring. Her relationship to the Mahring household is not stated in the census record.
Age in 1860: 4
Sex: F
Race: W
Birthplace: Pennsylvania
Township: Cumberland
Dwelling Number: 481
Family Number: 537
Identification Status: Unresolved
Confidence Level: Weak
Evidence Strength: Weak Circumstantial