1879  Five good carcasses, the remains of three that had been devoured, and three crows, recently fell to the share of one "wolfer."
1930  Even more disreputable than the whisky traders were the wolfers. They made their living by hunting the wolves that preyed upon the herds of bison.
1965  By the middle of the nineteenth century the trail was being used by beaver trappers and wolfers, by gold seekers and missionaries and whisky-traders.