 An amateur naturalist and active conservationist, Louis Marshall was instrumental in securing "forever wild" protection for the Adirondack and Catskill Forest Preserves in New York State.He helped found the New York State College of Forestry at Syracuse University, now State University of New York College of Environmental Science and Forestry (SUNY-ESF).Florence Marshall, meanwhile, devoted herself to her family, the education of young Jewish women, and the work of several Jewish welfare organizations.