We seem to be researching the same Alexander line. We don't agree on some of the information. Patrick Alexander was born in Ireland and came to America with his father as an emigrant from Scotland. After Patrick's death, his widow and children removed to Maryland.
Patrick Alexander's son, James did live in Kentucky, but did not die there. James Alexander's wife was a widow when they married and her name was Mary Dean DePew.
James Alexander's son, Samuel was married three times and had more than 7 children all totaled. James had three sons that became ministers - one of them being William Patterson Alexander.