The retention of Black teachers in the teaching profession remains challenging due to historical events and policies, low salaries, lack of support from administrators, and other school factors. This action research study aimed to investigate, develop, and implement a retention support program for Black teachers employed in their first-fifth year of teaching in an urban school district through a nonprofit education organization. Participants and data collected in Cycle 1 consisted of novice Black teachers in their first-to-fifth year of teaching who identified relationships, professional learning, administrative support, and mentorship components of a support system to increase the likelihood of retention. Action steps for the One Room Schoolhouse were then designed, implemented, and evaluated in Cycle 2. The One Room Schoolhouse consisted of a racial affinity network, professional learning, and mentorship. Education experts led six professional learning virtual sessions contracted with a nonprofit education expert. Participants were novice Black teachers in DC, MD, AL, LA, and MI. The research revealed that having a racial affinity network created a secure environment for Black teachers. It also emphasized the importance of culturally relevant professional development to acquire effective teaching strategies and manage classrooms. Furthermore, mentorship was crucial in guiding and advising novice Black teachers through their challenges. Implications for the organization indicate that hosting a racial affinity network could lead to positive impacts such as promoting inclusivity, providing a safe space, increasing diversity, and promoting cultural awareness. However, there is also the possibility of facing backlash and unintended consequences such as reinforcing stereotypes or perpetuating racial divides. [The dissertation citations contained here are published with the permission of ProQuest LLC. Further reproduction is prohibited without permission. Copies of dissertations may be obtained by Telephone (800) 1-800-521-0600. Web page: http://bibliotheek.ehb.be:2222/en-US/products/dissertations/individuals.shtml.]