Mamie Gaines is an Air Force veteran who retired after more than two decades of distinguished military service. She worked as a Certified Staffing Specialist for Elwood Staffing in Oxford, Alabama, before joining Smithsonian Institution as Executive Assistant to the Senior Vice President of Smithsonian Enterprises in Washington, D.C. While there, she simultaneously worked as the Smithsonian Theaters Contract Administrator. She spent 10 years at the Smithsonian and then managed the Sleep Inn & Suites in Montgomery before joining EJI in 2020.