After Bolger left Broadway, he took up permanent residence in his Beverly Hills home. New York became just a place to visit. He began touring the country’s social clubs with a dance-lecture he called “Ray Bolger’s World.” This allowed him to share his philosophy, nostalgia, and dancing talent in small, intimate settings. He realized he didn’t need the fuss of a big production, the grueling work, the personalities at odds. As Richard Rodgers, in his later years, had said of creating a musical, “I now realize that the whole business, from start to finish, is the most intense collaborative effort in the world, with the possible exception of running a war.”...