A graduate of the Minnesota College of Law, Joseph B. Pinger practiced law in Minneapolis from 1933 to death on December 12, 1956, at age fifty-three. In memorial services for the Hennepin County Bar Association the following year, a colleague recalled:
"Joe's word was better than most men's bond; his loyalty to his friends was of the unswerving kind that inspired loyalty in return. His firmness of character was matched by a gentleness and courtesy that turned away wrath and blunted the barbs of opposition. He was truly a gentleman, and I may add, a scholar too. He was learned in the law and in many things."