In the early 1940s, Hawes, along with Pete Seeger, Lee Hays, and others, joined the Almanac Singers. Members jumped in and out of the group like a revolving door, and one of the members, Butch Hawes, became Bess Lomax's husband in 1942. Lomax Hawes also met Woody Guthrie, who taught her to play the mandolin. When World War II began and the Almanacs disbanded, Hawes worked in the Music Division of the Office of War Information, helping to prepare radio programs for broadcast in Europe and the Near East. After the war she and her husband moved to Boston, where she gave music lessons to children and wrote campaign songs for the progressive mayoral candidate, Walter F. O'Brien. It was during this period that she co-wrote the M.T.A. song with Jacqueline Steiner, later to be popularized by the Kingston Trio.
In the '50s, the couple relocated to the West Coast where Hawes continued her work as a music instructor. Besides housing traveling musicians and teaching, she performed at a number of coffee houses and clubs during the '50s and '60s. Hawes also appeared at a number of folk festivals, including Newport, Berkeley, and UCLA, and taught workshops. As Hawes' reputation as a teacher grew, she was invited to join the staff of the San Fernando Valley State College, where she became an associate professor in anthropology in 1968. She also taught at the Idyllwild School of Music and the Arts, and co-authored -Step It Down -- a book about African-American children's games -- with Bessie Jones. In the mid-1970s Hawes joined the Division of Performing Arts staff at the Smithsonian Institute in Washington, D.C. ~ Ronnie D. Lankford, Jr., Rovi