 In 1939, Anderson briefly left the group and returned in 1941 before departing for a final time in 1943, also in 1939, Martin added the first female voice to the group, Bessie Folk.By the mid-1940s, the RMS added two more women to their ranks, Sadie Durrah and Delois Barrett (Campbell), who would go on to found the Barrett Sisters.In 1947, the group made their first recording for Fidelity Records as the "Roberta Martin Singers of Chicago", singing "Precious Memories" with Norsalus McKissick on lead.