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Marilyn Brown headshot

Marilyn Brown


Marilyn is the President & CEO of the Coalition for the Homeless of Houston/Harris County. Marilyn joined the Coalition in January 2012 in the position of President & CEO. She has worked in the nonprofit, corporate and government sectors throughout her career. Not a native Houstonian, Marilyn was transferred to Houston in the late 90s when she worked for BFI, Inc. She later worked as Director of Community Relations for Waste Management, Inc.  Moving back into the nonprofit world, Marilyn worked at the Greater Houston Community Foundation and was the President & CEO of Leadership Houston. Marilyn has a B.S. in Education from the University of Tennessee, an M.B.A in Marketing from the University of Memphis and a Doctorate of Jurisprudence from the University of Houston Law Center.

    Todd Shell headshot

    Todd Shell

    Vice Chair

    Todd began his career with CORT in 1991 in Dallas and has held various positions including National Brand Manager and National Marketing Manager. Todd has received numerous awards and certifications throughout his career, including the prestigious Presidents Sales Excellence Award.  After meeting people in the supportive housing industry, Todd began volunteering at local organizations serving food, collecting can goods for food banks, clothes drives, and in any way he felt he could help. Through his volunteer efforts, he could see the effects of helping people through housing and supportive services. Todd Shell grew up in the small East Texas Town known as Carthage Texas. After graduating High School, he attended Panola Jr College and LSU where he obtained his degree majoring in marketing and management.

      Karlene Lewis

      Karlene Lewis


      Karlene achieved Executive Director Status with the YMCA of Corpus Christi in 1994, and in 2008 after 20 years with the YMCA Karlene was recruited for the Chief Operating Officer position with Corpus Christi Metro Ministries. Karlene is passionate in the pursuit of finding homes for people living on the streets.  Karlene serves on the Board of Directors for the Uptown Neighborhood Initiative, the Homeless Issues Partnership, and the Texas Homeless Network. 

        Bill Hubbard


        Bill was hired as the Executive Director of the South Alamo Regional Alliance (SARAH) for the Homeless in May of 2015.  He became engaged with low income and poverty issues while working at the Internal Revenue Service, where he retired after a 32-year career.  Most of that time he spent managing enforcement programs. He spent his last 7 years promoting low-income tax credits, financial literacy, and asset building through the IRS coalition building and outreach programs in Central and South Texas.  San Antonio developed one of the largest free tax preparation (VITA) programs in the country within those programs.  When he retired, the City of San Antonio offered him a position to support the city’s effort in developing the Haven for Hope campus.    In that job, he worked with the Haven for Hope development team, service providers, and other stakeholders to establish the basis for the homeless initiatives. 

        As the Executive Director of SARAH Bill is responsible for the day to day operations of the Continuum of Care for San Antonio/Bexar County.  Those operations include the annual Point in Time Count, HUD Grant Competition, evaluation of service provider performance, adherence to HUD homeless guidelines and implementation of HUD directives such as Coordinated Entry System and Housing First.  He provides oversight for all program requirements and manages stakeholder relations. 

        Bill is a veteran of the United States Coast Guard.  He and his wife have been married for 43 years and have one son, a career Army officer, and three grandchildren. 

          Stephanie Day


          Stephanie Day has multiple years of business and leadership experience.  She completed her undergraduate studies at Concordia University Texas, where she obtained Bachelor of Arts degrees in both Business Administration and Communications.  Stephanie attended Keller Graduate School of Management where she received an MBA in Business Administration including a concentration in International Studies.  Stephanie completed her doctorate degree at the Chicago School of Professional Psychology where she earned a Ph.D. in Organizational Leadership.  Until retirement, Stephanie taught courses in business, management, and leadership both domestically and abroad.


            Teri Holtkamp

            Teri Holtkamp


            Teri has a background in early childhood education and worked in the field for 23 years that also included consulting for the Texas Association of School Boards and training from Dr. Ruby Payne as well as Dr. Donna Beagle on poverty. Teri previously served as the executive director for The Cove Waco, a center assisting youth experiencing homelessness who are trying to graduate but have no permanent living place. Prior to that, Teri worked at the City of Waco where she served as the Homelessness Administrator for 13 years. Ms. Holtkamp and her team were the first to use the Homeless Management Information System (HMIS) in a local school district (Waco Independent School District) in the United States. Teri also serves as co-chair of Once Upon A Prom, a scholarship fundraiser held each year in memory of her youngest daughter McKenzi who was killed in a car accident in 2001. Teri has co-chaired this event with her eldest daughter Brittney for the past 15 years and to date, the event has helped aid well over 300 local students with scholarships. Teri and her husband Tim live in Robinson, TX and attend Trinity Lutheran Church. Her full-time job is being a grandmother to her two grandsons. 

              Ben King


              Ben King is an epidemiologist and Research Scientist at the University of Texas Dell Medical School Stroke Institute, in the Department of Neurology. He is the President and Chief Scientific Officer of Methods and Results, a research consulting service.  He has a Master’s in Public Health and Community Health Management and is in his final year as a doctoral candidate at the UT-Houston School of Public Health, in the Department of Epidemiology, Human Genetics, and Environmental Services. Through M&R and the UT SPH, he works with biomedical and healthcare-focused start-up initiatives and community-based non-profits, particularly in housing/homelessness services and mental health programs.  He has served in multiple leadership roles at the American Public Health Association, as a peer reviewer for multiple journals, and as a member of the National Health Care for the Homeless Council's Research Coordinating Committee.