In 1908, Martha Minerva Franklin and Adah B. Thoms, two colleagues of Mahoney, met in New York City and decided to start the National Association of Colored Graduate Nurses (NACGN). Mahoney worked tirelessly with these women as a co-contributor to the association by improving the access to educational and nursing practices. This organization attempted to uplift the standards and everyday lives of African-American registered nurses. The NACGN had a significant influence on eliminating racial discrimination in the registered nursing profession. An increase in the acceptance of Black women into notable medical platforms and the integration of the NACGN with the American Nurses Association prompted the dissolution of the organization in 1951.