My thanks to Jim Lewis for sending me these photos of a place I’d never heard of before. The Hollywood Roof Ball Room (‘ballroom’ spelled in two words on the sign) which stood on the southwest corner of Vine and Selma Streets in Hollywood. The resident bandleader was Don Juielle, who I’d never heard of but appears to have been a Cuban musician who wrote a song for an Eddie Foy Jr featurette for Warner Bros.’ Vitaphone, called “Hotel a la Swing.” (1937) This photo is from the 1920s, and by the 1930s, this building had become a dance school.

The actual ballroom itself gave customers plenty of room to cha-cha:

This is how that corner looked in January 2018: