Mark could be a writer, and/or partners with Lucas, a surveyor, a stagecoach driver, etc. After all, everybody needs a day job!
an inventor, he dreamed of a machine that could wash the dishes. I think he gave up the idea of being a doctor when Doc Burrage gave him the shot
:cowgirl: "For I know that my redeemer liveth, and He shall stand beside me later on." (Lucas in Home Ranch) :gunfightercowboy: