Malcolm, thanks for pointing out the thread with the song and story already posted. It shows that I am not the only one who commits this error by not thoroughly checking before "rushing to press."
In some cases, duplication is inevitable because some songs are almost completely hidden in Mudcat's haystack. Check for "The Streets of Laredo," which is under "Cowboy's Lament" but not under "The Cowboy's Lament" (or is it v. v.?). Also see the current thread on the MTA song where even Masato Sakurai re-posted because the wrong version comes up with "Ship That Never Returned;" you must enter "THE Ship..." By the time all thread and DT possibilities are checked, interest is lost.