Welcome to RootsChat Kathleen,
Crighton, Creighton and Crichton. Slightly different spellings but pronounced in much the same manner. There are families named Creighton in Ireland.
Creighton - 1796 Flax Growers List (Spinning Wheel Census).
Alexander, Kildress. Tyrone
Laurence, Enniskillen. Fermanagh
James, Donaghenry. Tyrone
Thomas, Aghaloo. Tyrone
William, Kildress. Tyrone
Robert, Down. Down
Richard, Down. Down
Edward, Clondermot. Derry
Henry, Banagher. Derry
John, Magherafelt. Derry
James, Newtown. Down
Alexander, Errigal. Derry
There appear to be no Crightons on the Flax Growers list but there were a couple listed in Griffiths Valuations of Ireland ...
John Crighton, Cavanacross, Derryvullan. Fermanagh
Michael Crighton, Aghadrestan, Tibohine. Roscommon
269 people bearing the Creighton surname signed the 1912 Ulster Covenant and ten named Crighton signed.
There's an area called Creighton's Green in the Holywood Hills a few miles from Holywood, Co. Down. I assume a family named Creighton lived in that area at one time. A family friend, now deceased, had a cottage there. The views of Belfast Lough and the Co. Antrim coast were great as the cottage was at the top of a hill close to a reservoir.
Christopher