In Colmbkille the family name is McKeon - note the spelling. Id assume is a Scots name from circa 1700's and of one of two origins in the area:
- Planters, who later turned Catholic
- Ulster Gaels, who settled North Longford from 1700-1750 after pogroms in Strabane and Antrim.
Most notable member was General Sean MacEoin - note the current spelling - whose family are still in the area. As a boy he was a humbler sounding John Joseph McKeon.
Fewof the family use the old spelling now, one who does is Fr Seamus McKeon a local parish priest.