In the 1950s and '60s Hamm's and Grain Belt (which both still exist but under other ownership; these days Grain Belt, brewed by Schell's in New Ulm, Minnesota, has the greater market share) were just about the only beers available in Minnesota, where both were based.

Hamm's beer was known to anybody who watched television, even those who (like me) were too young to drink it.. In those days it was an undistinguished lager, but so were all the other popular brews in mid-century America. This was well before the welcome arrival of craft beers.