Marshall Bush Jones, 95, of West Palm Beach, FL, died on December 15, 2023.  He was born January 25, 1928 to Donald Jones and Muriel Jones (née Marshall) and raised in Manhattan and Millbrook, NY.  In 1952 he married Beverly Ratner, a marriage that was of central importance to them both and that lasted until his death.  During his long career as a university professor, Marshall did extensive research on a wide variety of subjects, including human factors; psychiatric genetics (especially the genetics of autism); the spread of attitudes and behaviors from one person to another; the prevention of antisocial behavior; learning theory; and, in later years, the home field advantage in team sports. His over 150 journal publications ranged from Behavior Genetics to Psychology of Sports and Exercise.

While a member of the faculty at the University of Florida during the turbulent 1960s, Marshall was an activist and community organizer, leading students in protests against racial segregation and theVietnam war. He purposely broke segregation laws by going into a restaurant with a black student, a“crime” for which he spent several days in jail together with people from Martin Luther King’s movement— one of his many stays in the local jail. His activism so rattled the university administration that they denied his application for tenure, despite the unanimous recommendation in favor by all Department Chairs in the College of Medicine— an action for which the American Association of University Professors (AAUP) took the rare step of censoring the university. He later documented this activist phase of his life in the book Berkeley of the South.

Marshall's concern for disadvantaged youth manifested itself in several ways, including writing an extensive history of the American orphanage from the Civil War until 1940 and serving as boardchairman of Keystone Human Services, a large, non-profit organization helping people with disabilities. In 1984 he was tasked by the president of the Milton S. Hershey Medical Center to lead the center's recruitment of talented students from Historically Black Colleges and Universities, a position he relished and which led to his life-long relationship with his first recruit, Dr. Mary Consolata Banda. After retiring from Pennsylvania State University, he continued as an Emeritus Professor and independent researcher, working and publishing until his death.

In his early life, Marshall served in the United States Military as a Navy Aviation Cadet (1945-1946) and later as a lieutenant in the Medical Service Corps (1953-1955). He received his B.A. degree in Philosophy from Yale in 1949 and his Ph.D. in Psychology from the University of California at Los Angeles in 1953. There followed academic appointments as Research Psychologist at the U.S. Navy School of Aviation Medicine (1956-1962); Associate Professor of Psychiatry and Psychology at the University of Florida (1962-1968); Professor of Behavioral Science at Pennsylvania State University's Milton S. Hershey Medical Center (1968-2003); and Chairman of the Department of Behavioral Science at Pennsylvania State University's Milton S. Hershey Medical Center (1979-2003). Marshall had a vibrant intellect, breadth of knowledge, and joy of living that never ceased to give pleasure to and charm those who knew him.

Marshall is survived by his wife Beverly and his children, Donald (wife, Ana Madrid) of Royal Oak, MI and Susan Marshall (husband, Christopher Renino) of Princeton, NJ. He is also survived by two grandchildren, Adriana Jones and Nicholas Renino, and nieces Gabriela, Susana, and Flor Esponda. Marshall is predeceased by his sister Susana Jones. In lieu of gifts or flowers, the family asks that those who loved Marshall post memories and photos to the online memorial at https://www.mykeeper.com/profile/MarshallJones1/.