Women's Army Volunteer Corps
The Women's Army Volunteer Corps (WAVC) was an organization within the Women's Army Auxiliary Corps (WAAC) which later became the Women's Army Corps (WAC) in which women could serve as office assistants or military bus drivers. During World War II, women’s branches were created by the Naval Reserves who had the Women Accepted for Volunteer Emergency Service (WAVES) and the Marine's had the Marine Corps Women’s Reserves (USMCWR).
Source: Wikipedia — Women's Army Volunteer Corps (CC BY-SA 4.0)