I don't know the answer to the question if Fort Smith, AR was once a part of OK/IT but for whatever it is worth I found in my notes of several years ago: Oklahoma - Indian Territory Birth and death records 2 May 1890-10 Nov. 1907 Write: Clerk U.S. Dist. Court Fort Smith, Arkansas I have not used the above yet as I am just getting back to "genealogy." I am new to both computers and to this list. Bev