Hi Grace Monahan and Leo Higley were to have married in St. Louis 14 Feb 1920. Instead, they eloped on 07 Feb 1920. But we do not know where they married, probably before a J.P. Best guess - they did not go too far from St. Louis, or went near Phelps County, where Leo lived. If you have good access to marriage records, a lookup is sought. Bob Doerr in the beautiful Missouri Ozarks