This article addresses low retention and graduation rates among historically marginalized students in nursing programs at Historically Black Colleges and Universities (HBCUs). Mentoring is a proven success strategy to support systems for historically marginalized students, helping them navigate challenges, improving academic outcomes, and increasing the diversity of the nursing workforce. The article highlights the mentoring initiative of AARP's Center for Health Equity through Nursing and the Future of Nursing: Campaign for Action, an initiative of AARP Foundation, AARP, and the Robert Wood Johnson Foundation, and the outcomes of this collaboration. The paper details the implementation of a mentoring initiative to enhance graduation rates and National Council Licensure Examination (NCLEX) success among historically marginalized students and emphasizes collaboration among institutions and organizations, as well as strategies for funding, mentor recruitment, and NCLEX preparation. Recommendations include promoting robust mentoring programs, preparing mentors, and conducting further research on the effects of mentoring on student outcomes in HBCUs.