Fellow of the Royal Historical Society
Fellow of the Society of Antiquaries of London
Member, Medieval Academy of America
Member, Virginia Historical Society
Member of the Council of the Civil Litigation Section, Virginia Bar Association (1984 - present)
Executive Committee of the "Boyd-Graves Conference" on Civil Procedure, Virginia Bar Association (1982 - present)
Executive Committee, John Marshall Inn of Court (1999 - 2023)
Assistant Editor, American Journal of Legal History (1999 - 2009)
Editorial Board, American Journal of Legal History (1976 - 1999)
Committee on Reducing Litigation Costs and Delays, Virginia State Bar (1982 - 1990)
Surrency Prize Committee, American Society for Legal History (1981 - 1987)
Secretary, Commonwealth of Virginia, Service of Process Study Committee (1986 - 1986)
Law School Delgate, Association of American Law Schools (1985 - 1985)
Board of Directors, American Society for Legal History (1981 - 1984)
Bicentennial Committee, Virginia State Bar (1975 - 1980)
Legal History Section Chairman, Association of American Law Schools (1977 - 1977)