The GILMORE surname originated on the Isle of Lewis off the western coast of Scotland. According to various sources, the name means "Servant of Mary" or "son of Morris". Legend has it that the family descends from a Scandinavian prince who was shipwrecked on the island. The Gilmores are a sept of the clan Morrison. Most Gilmores in the U.S. are "Scotch-Irish" - they moved to Ireland in the 17th century in an attempt by the British King James II to rule the newly conquered territory of the north. A large number of the Protestant northern Irish emigrated to the U.S. in the mid-18th century, well ahead of the later immigration from the predominantly Catholic southern Ireland. Most Gilmores who arrived in the U.S. in the 18th century seem to descend from a group which immigrated to Lancaster Co., PA in the 1730-1740's. Migration followed southwards into Virginia, North Carolina, then after the Revolution into South Carolina, Georgia, and then the newly opening territories of Alabama, Mississippi, and then further west. I have traced my Gilmores to South Carolina at the end of the 1700's, then to Tennessee, Alabama, and finally Mississippi by about 1850.