No, Gary, Coleraine is County Derry (or Londonderry) near the mouth of the Bann River on the northern coast. County Tyrone is to the south of Derry; their border shares the wild and scenic Sperrin Mountains. I would hazard a guess that your ancestor Samuel came from western County Tyrone in the neighborhood of Strabane. This region known as the Lagan takes in eastern Donegal and western Tyrone and was the home of many Ulster Scots who emigrated to North America in the 18th century. Peter Gilmore