Member legal staff United Nations, 1948—1951. Private practice New York City, since 1950, Palm Beach, Florida, since 1967. Member firm Weidon and Crosswell, 1950—1966, Winkle Sims Kenny & Crosswell, since 1979.
Member United States Government Psychological Strategy Board, 1951—1953. United States delegate Inter American Council Jurists, Santiago, Chile, 1960. Professor international business transactions Nova Law School.
- Protection of International Personnel Abroad: Law and Practice Affecting the Privileges and Immunities of International Organization
Member Florida Marine Commission, since 1968. Board directors Junior League, Millard Fillmore Hospital, Buffalo, Save Children Federation, Gebbie Foundation Institute, Nova University Law Center. Member of Fellows Harvard, Society Women Geographers, Royal Canada Yacht Club (Toronto, Ontario), Beach Club (Palm Beach, Florida), Sail Fish Club, Palm Beach Yacht Club, Olcott Yacht Club (New York City), New York Skating Club, Buffalo Country Club, Indian Harbor Yacht Club (Greenwich, Connecticut).