Fred, I am descended from two lines of Tidmores and the Cokers. John Pinkney Tidmore's wife Emma Vann Coker was the sister of my gg grandfather Obediah Downs Coker. Obediah's wife was Margaret Clementine Tidmore. Her grandfather (William) and John Pinkney Tidmore's grandfather (Henry) were brothers. Obediah and Margaret's son, George Walter Coker married Effie Ora Tidmore. Ora's grandfather (Jeremiah) and John Pinkney's father (Henry) were brothers. It gets very confusing sometimes.
If you would like more of my family info, let me know.