From an obit sent in today:
After returning from the war Jack married Eleanor K. Ekx in Longmont on April 23, 1950. They made their home here in Longmont. Jack went to work with his father at the Bob Hamill Farm Supply, until his death. He then went into partnership with his uncle Roy McCall owning and operating the Nash Auto Dealership in Longmont.
Apparently, in the highly stagnant world of farm supply, one might not expect a promotion until after one's death.