Bachelor in English Literature, Queens College, 1949. Bachelor in Journalism, George Washington University, 1956. Master of Arts in Journalism, American University, 1961.
Assistant editor American Home Economics Association, Washington, 1954-1956. Director public relations Page Communications Engineers, 1956-1958. Head policy and procedures department Naval Security Station, 1959-1978.
President Joan K. Cassidy Associates, Wheaton, Maryland, since 1979. Instructor Graduate School United States Department of Agriculture, Washington, 1979-1980. Lecturer in public speaking and business writing.
Commissioned ensign United States Navy, 1950, advanced through grades to captain United States Naval Reserve, retired, 1976. Member Women Business Owners Montgomery County, National Association Women Business Owners.