A Robert Killey in Cleveland in 1880 may be Margaret's father. He is my g-g-grandfather on my mother's side. He migrated to Painesville, Ohio first, and then to Cleveland. Here is information from the 1880 census listing for Robert. The household in 1880 included 3 sons (Robert, John, William) and 2 daughters (Catherine and Elizabeth). Two other daughters (Isabell and Jane) were probably out of the house by then. Isabell is my g-grandmother.

Robert KILLEY
Birth Year
Birthplace ISLE OF MAN
Age 52
Occupation Blacksmith
Marital Status W
Census Place Cleveland, Cuyahoga, Ohio
Family History Library Film 1255006
NA Film Number T9-1006
Page Number 391C