Susannah A Glascow was born on 28 April 1895, in United States.
Scottish (Lanarkshire and Midlothian): habitational name from Glasgow, the city on the Clyde (first recorded in 1116 as Glasgu), or from either of two minor places with the same name in Aberdeenshire. The etymology of the placename is disputed; it is probably from Welsh glas ‘gray, green, blue’ + cau ‘hollows’.
Scottish and Irish (Tyrone and Antrim): altered form of Closkey, a shortened and Anglicized form of Gaelic Mac Bhloscaidhe ‘son of Bloscadh’ (see McCloskey ).
Irish: variant of English Glasscock , which was once common in County Kildare.