"KENTUCKY ANCESTORS," Volume 7, #2, shows a connection between the descendants of James Logan, immigrant, and David Logan, his brother, also an immigrant, and Mary Todd Lincoln. David Logan was the father of General Benjamin Logan, General Hugh Logan, and Colonel John Logan as well as Nathaniel Logan, Mary Logan, Sarah Logan, William Logan, Tabitha Logan and Margaret Logan Sarah Logan married Samuel Briggs and they had a daughter, Jane Logan Briggs, who married 25 Feb. 1779, General Levi Todd. They, in turn, had a son, Robert Smith Todd, whose daughter was the Mary Todd who married Abraham Lincoln .