She was the leader of the All-American Girl Orchestra, the first all-female band to tour with the USO during World War II.

[2] Leonard debuted on stage at age 2, singing and dancing in her parents vaudeville act.

[2] The Ada Leonard Orchestra was the first all-female band officially signed by the USO, and it performed at army camps throughout the United States during World War II.

[2] Leonard portrayed Princess Zarina, a fan dancer, in the film Meet the Missus (1937).

[6] Leonard was married, and widowed, twice: first to George L. McCall, who had managed her career; and, subsequently, Dr. Harold Bernstein, one of the founders of the Reiss-Davis Clinic.