African-American heritage of presidents of the United States
Calvin Coolidge's mother Victoria Moor was claimed to be of a mixed-race family in Vermont. Vaughn noted that her surname was derived from "Moor", a European term for people of North Africa. He did not note that another meaning of her surname is the landscape feature of moor or bog. People's surnames were often based on such landscape features when surnames became generally adopted in 14th century England. Moor/Moore is a common name in England, Scotland, and Ireland.
Jeremiah Morrow
Morrow was born near Gettysburg in the Province of Pennsylvania. He was of Scots-Irish descent, his Irish grandfather, also Jeremiah Morrow, had come to America from County Londonderry, and was descended from 17th century Scottish settlers. He moved to the Northwest Territory in 1795. He lived at the mouth of the Little Miami River for a short time before moving to what is now Warren County. As a member of the Associate Reformed Presbyterian Church, he sought the services of a minister of his denomination soon after settling in the region, and he was one of the original elders of the Mill Creek congregation when it was organized shortly before 1800.