My branch of Uptons migrated early in the 1700s from Lousiana to the Carolinas where in the late 1700s and early 1800s the family split. My branch went back to the Mississippi Territory and the Carolina branch moved west in the 1840s to Calilfornia, founding the community of Plymouth, California in the Sierra Nevada Mountains. I used to meet Uptons from that part of the state and share genealogy.
David