I have Iona Garrison as the daughter of James Garrison b1845 and Lumira Williams b1850. One of eight children. James was the son of Seman Garrison b1820 and Sylvania Barnes b 1828. Seman Garrison was the son of David Garrison b1792 (my 3thG grandfather) and Elizabeth Taylor b 1796. David was the son of James Garrison b 1741 or 1747 and Hester Roberts b 1757. Let me know if this is a fit. I have lots of other info. Joe D Garrison