About us

Executive Director Mina Thomson joined GP Thomasville as Interim Executive Director in 2025, and then, as Executive Director in 2026. A product of a family owned business, her career has spanned across the nonprofit, corporate, small business, and academic sectors. In all her roles, she’s been passionate about enabling growth and development. She earned her Master's in Business Administration from Valdosta State University, is a proud alumna of Leadership Thomas, and remains deeply involved in the community. She has lived in Thomasville since 2005, and loves spending time with her husband, Ron, and their dog, Nestor.

Founding Chair / Board Member Dr. Bob Miles is the Founding Chairman of GP Thomasville. He was born and raised in Saint Simons Island, GA, and has been practicing cardiology in Thomasville, GA since 2005. A devout Christian, his calling to help others through his profession and philanthropy has been evident throughout his life. He’s married to his wonderful wife, Laura, and has three children, Thompson, Emmett, and Bosie.

Board Member Todd Mobley has been a dedicated champion and Board Member of GP Thomasville since 2018. Born and raised in Thomasville, GA, he’s a retired Thomasville High School Principal, a member of the Thomasville City Council, and most recently, Mayor of Thomasville.

Campus Director Leon served in the United States Marine Corps, and lived overseas in Iwakuni, Japan. A lifelong learner, he obtained two university degrees in Education after his military career. He is a proud father of two beautiful young women, who are presently blazing a trail in their lives and careers in a manner that brings both honor and glory to their father.

Board Treasurer Dr. Brandi Warren has been an active member of GP Thomasville since 2019, serving on the Board, providing a worksite for the leadership program, and welcoming GP students to her family practice clinic for the summer program. She has lived in Thomasville since 2008, where she and her husband Jesse have raised their two sons.

Board Member Arthur Wigfall is a retired federal employee with 29 years of distinguished service in law enforcement. Born in Charleston, SC, he is an active member of the Rotary Club of Thomasville and a proud graduate of the Leadership Thomas Leadership Development Program. Arthur is passionate about fostering a progressive and inclusive community with a strong commitment to improving the quality of life for all citizens—regardless of background or demographics. He loves spending time with his three daughters, Ariel, Mckenzy, and Meghan.

Board Chair André Hadley Marria is a licensed therapist, CEO, and community leader. She serves as a therapist with the City of Thomasville Employee Assistance Program and as CEO of Marria’s Counseling, Coaching, and Consulting Services, LLC. Prior to that, she held several influential roles in her 34 year career with the Georgia Department of Human Resources. She has received numerous prestigious awards and recognition for her dedicated service and accomplishments with the Georgia Association of Licensed Professional Counselors, the Toastmasters, and the Rotary Club, where she most recently served as District Governor, was awarded United Rotary Women of Impact Lifetime Achievement Award, and was recognized as one of six “People of Action: Champions of Inclusion” by the Rotary International President. Notably, in 2024, she was awarded the Thomasville/Thomas County Chamber of Commerce “Woman of the Year” Community Impact Award for her tireless passion serving our community. She has enjoyed a long marriage to Evangelist Walter Marria, Jr., and they are blessed with four children, eight grandchildren, and three great-grandchildren.

Board Member A native of Thomasville, GA and a 1991 graduate of Thomasville High School, Dr. Tina McBride worked in Thomasville City Schools for 28 years. Now, as a retired educator and an active community member, she continues to serve our youth as a part time Educator in the P-12 sector and as an Adjunct University Professor. She’s married to her husband, Stanley, and has three sons, Gavin, Eddie, and William.

Board Member Angela Williamson has built a diverse and service-driven career spanning childcare, administration, eldercare, and nonprofit work. A Valdosta State University graduate, she currently works with Williams CPA, and has recently launched her own ice cream truck business, The Ice Cream Girl. She is committed to a life of service, is deeply involved in the Thomasville community through Rotary, church leadership, and volunteer work, and is a proud alumna of Leadership Thomas Class 41. Angela enjoys spending family time and traveling with her husband, Ron, their three children, and one grandchild.