Harvey Riley, The Mule: A Treatise on the Breeding…
“ If he is asked a question at all, it is merely if he has ever driven a team before. If he answer in the affirmative, and there are any vacancies, he is employed at once, though he may not know how to lead a mule by the head properly. This is not alone the case with teamsters. I have known wagon-masters who really did not know how to straighten out a six-mule team, or, indeed, put the harness on them properly. And yet the wagon-master has almost complete power over the train. ”
