Calvin was a salt merchant's bodyguard hailing from a community living under a salt mine located under Hutchinson, Kansas.
With survivors in increasing need for common table salt, the community under the salt mine realised that selling the salt was vital for their survival. Calvin became one of the two bodyguards sent to accompany and protect one of the twelve salesmen.
During Late September, 1953, Calvin, along with fellow bodyguard Ted, who were accompanying salesman Peter Sowers, were ambushed by at least two hundred Leapers whilst heading to their rendezvous in Colby, Kansas leaving Sowers the only survivor.