Zachary R. Nicholas
President
Zachary R. Nicholas (Zac) is a Family Medicine physician with Contra Costa County Health Services. He completed his medical residency in Stockton at San Joaquin General Hospital. He lives in Martinez and provides full-spectrum primary care to all populations with a focus on sexual and gender health and substance use disorder. He has also conducted extensive research on harm reduction policies and community availability of naloxone to prevent opioid overdose deaths. Zac is committed to improving the lives of all marginalized communities through committed allyship and elevating oppressed voices for meaningful change.
Jonathan Lee, PhD
Treasurer
Jonathan Lee (pronoun: verbal Mandarin "ta"), is a professor of Asian American Studies at San Francisco State University. His family survived the Cambodian genocide and arrived in the United States in 1981 when he was 5 years old. He identifies as Chinese-Vietnamese-Cambodian American. He received his doctorate in religious studies from the University of California at Santa Barbara in 2009. He has published 16 books, and numerous articles and essays on Asian American histories, folklore, cultures, and religions. Currently, he serves as editor-in-chief of Chinese America: History & Perspectives, a peer-review journal published by the Chinese Historical Society of America. He is dedicated to anti-racist pedagogy in education and has been invited by several Silicon Valley corporations and public agencies to speak on equity, inclusion, diversity, and belonging issues. He and his husband are fathers to two adopted sons. He has served as Rainbow's Board President (July - October 2023) and Interim Executive Director (October 2023-August 2024).
Lindsay Litowitz Souza
Secretary
Lindsay Litowitz Souza is a Program Coordinator at Los Medanos College, where she's responsible for building community through events and programs. She leads the Pride365 initiative at work, and is looking forward to serving her community at the county level. She is passionate about social justice, and earned her Masters in Higher Education Student Affairs from University of San Francisco. Lindsay lives in west county with her wife and many pets. She enjoys board games, crafts, decorating, and audiobooks.
Grant Kerr
Grant (he/him/his) is a 20+ year resident of Concord CA. Having migrated from his hometown of Bloomington, IN. Where he volunteered regularly for many grassroots community-based endeavors. Grant faithfully served a three-year term as the Director of the Bloomington GLBT Switchboard. A volunteer-based evening/weekend listening line service for the GLBTQ+ communities of South-Central Indiana. Grant also worked with IU’s Office of GLBT Student Support to establish continuing services to IU and the surrounding community. He is a proud member of the historic Club 1220 bar family in Walnut Creek. Where he works as a door person & bar back. He appreciates that both 1220 and RCC share the continuity toward building our collective lesbian, gay, bisexual, transgender, queer + intersex people community. A previous volunteer for RCC, Grant has rediscovered his call to visible activism in the face of our social and political climate. Choosing to serve alongside the Board of Directors for RCC. As well active participation in RCC group events.
D'Marco J. Anthony
D’Marco J. Anthony is interested in and involved in local political advocacy and building community. He has a Bachelor’s degree in Political Science and he minored in Global Studies. D’Marco is currently working in the international travel industry. He has been a Concord resident for over a decade. Mr. Anthony was the first openly queer person to run for Concord City Treasurer. He has African American, Ashkenazi Jewish American, and Irish American heritage. D’Marco is excited to use his new role with RCC to advocate for our local queer community.
Justin Ceja-Wilson
Justin Ceja-Wilson is a driven and passionate leader with over two decades of experience in operations and service delivery, currently serving as the Senior Director of Business Transformation at EOS IT Solutions. Known for building strong teams, simplifying complex processes, and delivering real results, Justin thrives on creating structure, fostering collaboration, and leading with purpose.
Outside of work, Justin is all about heart and home. He’s been happily married to his husband, Cesar, for nearly five years, and together they share their life with two spirited dachshunds, Miles and Phil. A dedicated homebody who loves to entertain, Justin finds joy in cooking and baking, always trying out new recipes and sharing his creations with friends and family.
When he’s not optimizing operations or whipping up something in the kitchen, you’ll likely find him traveling—whether it’s exploring new cities, relaxing by the coast, or planning the next big adventure. Justin lives life with intention, curiosity, and a deep appreciation for both the journey and the people who share it with him.
Justin is thrilled to be joining the board of the Rainbow Community Center (RCC). As a proud member of the LGBTQIA+ community, he sees this opportunity as a chance to give back, learn, and help build a stronger, more inclusive future. He believes deeply in the power of diverse voices working toward a common goal—and is excited to contribute his experience, energy, and heart to the mission of RCC.
Chris Holden
Staff Representative to the Board (non-voting)
Chris received his Bachelor of Science at Boston’s Northeastern University and an addition graphic arts degree at Epping Forest College, London, England. His most recent work experience was as a Program Coordinator for 140+ disabled/formerly homeless seniors in a supportive housing setting. Prior to that, Chris lived in Zurich, Switzerland for 7 years and traveled extensively through Europe and Asia and taught English in Dharamsala, India.