Hello Rose, I an descendant of Colonel William Acheson. I did ot have his wife's name. Do you have inf about William's parents? Here is what I know. "Colonel William, came to Ireland and, for a period, was Provost-Marshal of Lough Foyle and Derry in the early years of the reign of James I. He held an estate in Leinster. In 1641 he became a lieutenant-colonel in Sir William Cole's regiment of foot in Enniskillen and later took up a regiment of his own." Peadar Livingstone 'The Fermanagh Story".