How, if at all, is Anna Cora Schoff connected to this family? Cheboygan (County)
Anna Cora Schoff to Herbert Randall 17 Sept 1879, Washtenaw County, MI Source: Marriages for Washtenaw County, MI USGENWEB
However, if Anna Schoff married in 1879, she must have been born sometime before 1863, so she is too old to be a child of John and Margaret. Perhaps she is some other relation?