Most databases give the father of Elisha Harrison as John Harrison. This is incorrect.
Mercy Terry was the daughter of William and Rachel Terry of Botetourt County, VA. Records of the estate of William Terry [died1808] from 1808 reveal that "Mercy Terry, wife of Jonathan Harrison" received her one/eighth share in her father's estate.
Mr. Bunton descends from William Canady Harrison, a grandson of William & Rachel Terry Harrison through their son, Elisha Harrison. He has a family letter stating that Elisha H. Harrison's father was indeed Elisha [Elisha H. was a brother of William Canady and my ancestor Nathaniel Harrison]; his grandfather was Jonathan Harrison; his great-grandfather was Elias Harrison. The grandmother Harrison was a Terry. The letter also mentions a second cousin named Joseph Terry who lived in Madison Co KY - there was a Joseph Terry in the 1850 Madison Co KY. This Joseph Terry was a grandson of John Terry, brother of Mercy Terry; thereby proving that that Elisha H. Harrison did have a 2nd cousin named Joseph Terry.
Online information concerning Jonathan Harrison is confusing and cannot all be correct.
Some state that Jonathan or John "Jack" Harrison was a Longhunter - this may be a confusion with another John Harrison who was Not the father of Elisha.
A Jonathan Harrison filed a will in the County of Sussex, VA in 1776, the year he died, leaving his land and leases to his son William Harrison(1747), along with several slaves, livestock, tools, and household items. Obviously not the same Jonathan that was married to Mercy - see deed in 1808 above.
JONATHAN HARRISON and MERCY TERRY had the following children: