Student, Columbia University, 1919. Student, American Institute Banking, 1922. Bachelor of Science in Economics, National University, Washington, 1928.
Bachelor of Laws, National University, Washington, 1928. Auditor, Universidad Nacional, Buenos Aires, 1943. Juris Doctor, George Washington University, 1968.
Assistant manager foreign department, Battery Park National Bank, New York City, 1920-1923;
research associate, Inter-American High Commission, Washington, 1924-1925;
manager, Three Mountain Coffee Corporation, San Jose, Costa Rica, 1926;
chief Latin American section, United States Bureau Foreign and Domestic Commerce, 1926-1932;
manager international securities division, Standard Statistics Company, 1932-1937;
manager, Pan American Management Corporation, Buenos Aires, 1937-1939;
assistant general attorney, ITT, New York City, Buenos Aires, 1939-1961;
managing partner, Empresas Interamericanas, 1955-1989. Director subsidiary Information Technology&T Corporation. Senior editor World Tax Series Harvard Law School, 1961-1963.
Member of faculty Graduate School Business Administration University of Michigan, 1963-1967. Economics and legal advisory to goverments, Cuba, 1930, Colombia, 1931, Chile, 1935-1937, Argentina, 1946-1947, Bolivia, 1956-1957. Founder, executive director National Monetary Stabilization Council of Bolivia, 1956-1957.
Served to sergeant United States Army, World War I. Lieutenant United States Army Reserve. Member American Bar Association, American Economics Association, Inter-American Bar Association.
Married Marceline Gray, June 14, 1927 (deceased 1971). Children: Donald Gray, Richard Gray, Luisa Gray, Elizabeth McCulloch.