As the Noon hour approached in Grand Rapids, Michigan, the Classics IV single from late 1970, “Where Did All the Good Times Go?,” segued into “Teach Your Children” by Crosby, Stills, Nash & Young.

Jim Morrison famously opened the door to his trousers in February 1969. A few weeks earlier, Led Zeppelin released its first album. The Beatles had played their last show. Richard Nixon had been sworn ...