Susan Horner was likely Susan Robertson Horner (c. 1818–1863), residing in Cumberland Township, Adams County, Pennsylvania. Susan Horner was recorded in the 1860 census of Cumberland Township, Adams County, Pennsylvania as 45 years old, born in Maryland. She appears to have been married to David Witherow Horner. Local Horner history identifies her as mother of the children in the 1860 household. The entry placed her in dwelling 490, family 547, in the same household as David Horner and Oliver Horner and other residents.
Death Year: 1863
Age in 1860: 45
Sex: F
Race: W
Birthplace: Maryland
Township: Cumberland
Dwelling Number: 490
Family Number: 547
Spouse: David Witherow Horner
Identification Status: Probable
Confidence Level: Probable
Evidence Strength: Strong Circumstantial