Eason, Essie, Eassie - Anglicised Surnames in Ireland

Padraig Mac Giolla-Domhnaigh
1923

Eason, Essie, Eassie—These three names are the anglicised forms of a McIntosh sept called McAy, but have no connection with MacKay, though written the same way in Gaelic, Mac Aoidh. Ayson is a form.

Alphabetical Index of Anglicised Surnames in Ireland

See also Woulfe’s Irish Names and Surnames
and O'Hart's Irish Pedigrees