WALTER R. BIMSON, the author, chairman of the board of the Valley National Bank, Phoenix. COLONEL WILLIAM STIRLING, the host, owner and operator of Keir, a 50,000-acre Scottish estate that his family has owned since 1450. WILLIAM K. WHITEFORD, once an oil-field roustabout, now chairman of the board of Gulf Oil Corp. FRANK R. DENTON, vice-chairman and director of the Mellon National Bank & Trust Co. JOSEPH M. BRYAN, chairman of the board of Pilot Life Insurance Co. and Jefferson Standard Broadcasting Company, Greensboro, N.C. J. HAROLD CRANG, Toronto investment broker, fox hunter and skeet shooter. BEVERLEY MATTHEWS, brigadier general (ret.), holder of the O.B.E. and C.B.E., major behind-the-scenes figure in Canadian politics. LORD CHANDOS, Minister of State 1941-42, Secretary of State for Colonies 1951-54, suppressor of the Mau Mau in Kenya and son of British cricket great Alfred Lyttelton (he once recalled there were several Van Dycks in the family home, all damaged by cricket balls). TOMMY DAVIES, descended from a long line of Grenadier Guards generals, a Guards officer during World War II, industrialist and director of Gulf Oil of Great Britain. PRINCE RADZIWILL, member of the Polish nobility and brother-in-law of Jacqueline Kennedy.