The SKEA surname isn't very common but it is found in the Orkney Islands of Scotland. My own link is Janet SKEA who on Dec 1, 1829 wed John JOHNSTON of Lerwick [in the Shetland Islands]. They wed in Kirkwall, capital of Orkney and both were noted to be 'of this parish'. So far, I've not been able to confirm Janet's parents or birthplace. A patron submission to the IGI shows her born Walls, Orkney about 1812. She died 1847 in Orphir, so her parent's names and other information isn't reported as its before 1855.
Hoping someone will know of her or whatever siblings she may have had and post information here. Other SKEA families are to be found in the Kirkwall area. Please post what you know and ask questions about what you don't. Meg Greenwood / Oklahoma USA / Admin