Another name for Isabella was Isabella Creighead.
Isabella married Andrew Stewart, son of James Stewart and Eleanor McElwain, on 9 Apr 1812 in Carlisle, Cumberland County, Pennsylvania, USA.1 (Andrew Stewart was born in 1790 in Newville, Cumberland County, Pennsylvania, USA 1 and died about 1824.)
1 Stewart Clan Magazine by George Thomas Edson, Clan Stewart Society in America, Inc.
2 Notes from David A. Leas and/or the 1950 Leas Family Genealogy.
Kathryn Elizabeth (Leas) Stuart.