Jack has served as a board member and chair of the Louisa Chamber of Commerce, and president and director of the Louisa Historical Society, where he chaired a committee that raised funds to establish a museum reception center. Jack currently serves as chair of the Extension Leadership Council in Louisa. Jack is a longtime Rotary member and has served as president of the Louisa County Rotary and has written multiple grants for the county school district and other organizations. He served as chair of the Louisa electoral board for six years and serves on the board of J. Sargeant Reynolds Community College.
Jack installed ground-mounted solar panels adjacent to his house.