In the early 1970s, Gibson began directing women's sports and recreation for the Essex County Parks Commission in New Jersey. In 1976 she was appointed New Jersey's athletic commissioner, the first woman in the country to hold such a role, but resigned after one year due to lack of autonomy, budgetary oversight, and adequate funding. "I don't wish to be a figurehead," she said. In 1977 she challenged incumbent Essex County State Senator Frank J. Dodd in the Democratic primary for his seat. She came in second behind Dodd, but ahead of Assemblyman Eldridge Hawkins. Gibson went on to manage the Department of Recreation in East Orange, New Jersey. She also served on the State Athletic Control Board and became supervisor of the Governor's Council on Physical Fitness and Sports. In 1983 she married Sydney Llewellyn, her coach during her peak tennis years. That marriage also ended in divorce, after five years; she had no children.