Vollmar was born in San Francisco, California, where she began dancing with the San Francisco Ballet at age 12. Under the tutelage of Willam Christensen,[3] Vollmar started dancing in small roles with the San Francisco Ballet in productions including the 1939 premiere of Coppélia and the first full-length Swan Lake produced in America, in 1940.[4] Upon her graduation from Lowell High School at age 17, she joined the company. With the San Francisco Ballet, Vollmar went on to dance as the Snow Queen in The Nutcracker in 1944, in its first full American production.[5]
Vollmar returned to the San Francisco Ballet in 1956, and danced with the company until 1972, retiring after the Nutcracker season in 1972.[7] After retiring as a dancer, Vollmar served as a teacher and choreographer for several ballet companies. She was a teacher at the San Francisco Ballet School from 1985 to 2005.[4]