Steenson, Stinson, Stenson
Steenson, Stinson, Stenson, Stevenson, Stephenson—These five names have the one base from Stephen. The name is of Scottish origin and is found particularly in Fife and the Lothians in that country; in Gaelic Mac Stíbhin.
Alphabetical Index of Anglicised Surnames in Ireland
See also Woulfe’s Irish Names and Surnames
… and O'Hart's Irish Pedigrees