Mary Gilman Marston was born in San Diego, California in 1879 to George White Marston and Ann Lee Gunn. She attended San Diego
High School, Pomona College, and Wellesley College, which she graduated in 1903. Mary was closely involved in her father’s
civic activities, acting as his assistant and consultant in the creation of park lands and urban planning. After his death
in 1946 she continued to support numerous cultural, civic, and social causes. She served on the Neighborhood House Board,
and was a member of the San Diego Historical Society, San Diego Floral Association, San Diego Museum of Art, and San Diego
Museum of Man. She was also a long time member of the Wednesday and Tuesday Clubs, and the Zlac Rowing Club. In 1956 she completed
a two-volume biography of her father’s life, George White Marston: A Family Chronicle.