" Behold, a pale horse. " Johnny Ringo quotes Revelations, which Doc Holliday later completes during their showdown: "And hell followed with him".
If you are referring to an actual inscription for a physical tombstone, historical figures from the era often had distinctive epitaphs. For example, the real monument includes the humorous and surprisingly peaceful observation, " He died in bed ". subtitle Tombstone
" I’m your huckleberry. " (The definitive phrase for any fan of the film). " Behold, a pale horse