Debbi, This may or may not help...but for what it's worth:
ABSTRACTS OF OLD NINETY-SIX AND ABBEVILLE DISTRICT WILLS AND BONDS, by Pauline Young...Pg. 169
KEOWN, ALEXANDER---Box 52, Pack 1219: Est. admnr. Oct. 25, 1822 by Elizabeth Keown, Joseph C. Matthews, Alexr. Houston Esq. bound to Moses Taggart Ord. Abbeville Dist. sum $500.00.Sale, Nov. 15, 1822.Byrs:Elizabeth, Jas., Mary Ann, Wm. Keown, Mary Ann Young, Jane Hutchinson, Martha Calhoun, etc.
I found the following in the DAR PATRIOT INDEX - CENTENNIAL EDITION, Pg 1664...
KEOWN: Thomas:b 1740 IR d 6-8-1808 KY m (1) Polly Caldwell (2) Elizabeth Young Adj SC
This sounds like the same family...hope it helps some... Mary