Benson
Benson—Benson has been assumed by some of the M'Gildea sept in Co. Leitrim (Mac Giolla-Dé), and Managhan (O'Manacháin) in Co. Mayo.
Alphabetical Index of Anglicised Surnames in Ireland
See also Woulfe’s Irish Names and Surnames
… and O'Hart's Irish Pedigrees