The following regarding the former African American slave, Elias Prall, was extracted from the book, History of Washington County, Pennsylvania with Biographical Sketches of Many of Its Pioneers and Prominent Men (Boyd Crumrine, editor):
James Bunyan was from New York City, and had formerly been a sea captain. In 1795 John Morgan, a son of Col. George Morgan, married his only daughter Margaret, and as the Morgans removed to Morganza Mr. Bunyan was induced to come also to this section. He purchased two hundred acres of land belonging to Samuel Long and James Philips in the township of Cecil, on Chartiers Creek, opposite Morganza. John Morgan settled here; their son, Thomas Gibbs Morgan, became a leading lawyer in the State of Louisiana, and judge of the courts of that State. Another son, James, is now living in Pittsburgh. A colored man, Elias Prall, who came out with the family as a slave, is now living at Canonsburg at the age of eighty-five years.
Crumrine, Boyd (ed.), History of Washington County, Pennsylvania with Biographical Sketches of Many of Its Pioneers and Prominent Men (Philadelphia: L. H. Everts & Company, 1882).