Four members of New York City’s Radio City Music Hall Rockettes precision dance team take a break during rehearsals for a new show on April 5, 1966. The work is hard and the hours long for the girls who make the troupe. There are 46 girls in the troupe. These four, left to right, are Jane Simpson of Bangor, Mo., Jeanne Carroll of Hawthorne, N.Y., Susan Boron of Niles, Ohio and Diane McDonald of Union, N.J.

Four members of New York City’s Radio City Music Hall Rockettes precision dance team take a break during rehearsals for a new show on April 5, 1966. The work is hard and the hours long for the girls who make the troupe. There are 46 girls in the troupe. These four, left to right, are Jane Simpson of Bangor, Mo., Jeanne Carroll of Hawthorne, N.Y., Susan Boron of Niles, Ohio and Diane McDonald of Union, N.J.