While experimenting with the new Search on this website I found something that may be of interest.
In 1818 Philip Tackett, Section 15, Township 44 was recorded in Gasconade Co., MO. At the same time there was a William Pryor in Section 32, Township 44 (History of Franklin, Jefferson, Washington, Crawford and Gasconade Counties Missouri
Published by Goodspeed Publishing Company 1888)
The Tacket and Pryor surname was connected by marriage in Gasconade when Mary Pryor married George Tackett on 14 Aug 1828.
I’m wondering if there was a connection between these families in Tennessee. TN Land Grant 7912 described land being granted to John Prior in 1828 as bordering land he purchased from Philip Tackett (no date for that transaction). The Pleasant Pryor on the 1850 Census in Gasconade Co. is thought to be related to the the Pryors in White County, TN.