The Clan/Sept History

While the Anglicized versions of Irish names are familiar to most people, all
Irish names have a long and proud Gaelic heritage that is often unknown. The
original Gaelic form of the name MacColgan is O Cuileagain.

Spelling variations of this family name include: Colgan, MacColgan, McColgan,
O'Colgan and others.
First found in county Derry, where they held a family seat from ancient times.
Some of the first settlers of this family name or some of its variants were:
Patrick Colgan, who arrived in New York in 1761; John Colgan, who arrived in New
Jersey in 1771; Edward McColgan, who came to New Castle, DE in 1771; John
McColgan, who arrived in Philadelphia in 1816.

Motto Translated: Tried virtue flourishes.