1910 - 1911
Paul P. Harris
Chicago, Illinois, EUA

1913 - 1914
Russell F. Greine
Kansas City, Missouri, EUA

1916 - 1917
Arch C. Klumph
Cleveland, Ohio, EUA

1919 - 1920
Albert S. Adams
Atlanta, Georgia, EUA

1922 - 1923
Raymond M. Havens
Kansas City, Missouri, EUA

1925 - 1926
Donald A. Adams
New Haven, Connecticut, EUA

1928 - 1929
I. B. Tom Sutton
Tampico, Tamaulipas, México

1931 - 1932
Sydney W. Pascal
Londres, Inglaterra

1934 - 1935
Robert E. Lee Hill
Columbia, Missouri, EUA

1937 - 1938
Maurice Duperrey
París, França

1940 - 1941
Armando de Arruda Pereira
São Paulo, SP., Brasil

1943 - 1944
Charles L. Wheeler
San Francisco, California, EUA

1946 - 1947
Richard C. Hedke
Detroit, Michigan, EUA

1949 - 1950
Percy Hodgson
Pawtucket, Rhode Island, EUA

1952 - 1953
H.J. Brunnier
San Francisco, California, EUA

1955 - 1956
A.Z. Baker
Cleveland, Ohio, EUA

1958 - 1959
Clifford A. Randall
Milwaukee, Wisconsin, EUA

1961 - 1962
Joseph A. Abey
Reading, Pennsylvania, EUA

1964 - 1965
Charles W. Pettengill
Greenwich, Connecticut, EUA

1967 - 1968
Luther H. Hodges
Chapel Hill, Carolina del Norte, EUA

1970 - 1971
William E. Walk, Jr.
Ontario, California, EUA

1973 - 1974
William C. Carter
Battersea, Londres, Inglaterra

1976 - 1977
Robert A. Manchester II
Youngstown, Ohio, EUA

1979 - 1980
James L. Bomar, Jr.
Shelbyville, Tennesse, EUA

1982 - 1983
Hiroji Mukasa
Nakatsu, Oita, Japón

1985 - 1986
Edward F. Cadman
Wenatchee, Washington, EUA

1988 - 1989
Royce Abbey
Greenvale, Victoria, Australia

1991 - 1992
Rajendra K. Saboo
Chandigarh, India

1994 - 1995
Bill Huntley
Alford & Mablethorpe, Inglaterra

1997 - 1998
Glenn Kinross
Hamilton, Brisbane, Australia

2000 - 2001
Frank Devlyn
México

2001 - 2002
Richard D. King
Fremont, Califórnia, EUA

2004-05
Glenn Estess
Alabama, USA

1911 - 1912
Paul P. Harris
Chicago, Illinois, EUA

1914 - 1915
Frank L. Mulholland
Toledo, Ohio, EUA

1917 - 1918
E. Leslie Pidgeon
Winnipeg, Manitoba, Canadá

1920 - 1921
Estes Snedecor
Portland, Oregon, EUA

1923 - 1924
Guy Gundake
Filadelfia, Pennsylvania, EUA

1926 - 1927
Harry H. Rogers
San Antonio, Texas, EUA

1929 - 1930
M. Eugene Newsom
Durham, Carolina del Norte, EUA

1932 - 1933
Clinton P. Anderson
Albuquerque, Nuevo México, EUA

1935 - 1936
Ed. R. Johnson
Roanoke, Virginia, EUA

1938 - 1939
George C. Hager
Chicago, Illinois, EUA

1941 - 1942
Tom J. Davis
Butte, Montana, EUA

1944 - 1945
Richard H. Wells
Pocatello, Idaho, EUA

1947 - 1948
S. Kendrick Guernsey
Jacksonville, Florida, EUA

1950 - 1951
Arthur Lagueux
Quebec, Quebec, Canadá

1953 - 1954
Joaquín Serratosa Cibils
Montevideo, Uruguay

1956 - 1957
Gian Paolo Lang
Liorna, Italia

1959 - 1960
Harold T. Thomas Mission Bay, Auckland, Nueva Zelandia

1962 - 1963
Nitish C. Laharry
Calcuta, India

1965 - 1966
C.P.H. Teenstra
Hilversum, Holanda

1968 - 1969
Kiyoshi Togasaki
Tokio, Japão

1971 - 1972
Ernst G. Breitholtz
Kalmar, Suecia

1974 - 1975
William R. Robins
Fort Lauderdale, Florida, EUA

1977 - 1978
W. Jack Davis
Hamilton, Bermudas

1980 - 1981
Rolf J. Kälrich
Helsinki-Helsingfors, Finlandia

1983 - 1984
William E. Skelton
Christiansburg Virginia, EUA

1986 - 1987
M.A.T. Capara
Manila, Filipinas

1989 - 1990
Hugh M. Archer
Dearborn, Michigan, EUA

1992 - 1993
Clifford L. Dochterman
North Stockton, California, EUA

1995 - 1996
Herbert G. Brown
Clearwater, Florida, EUA

1998 - 1999
James L. Lacy Cookeville, Tennessee, EUA

2002 - 2003
Bhichai Rattakul
Tailândia

2005-06
Carl-Wilhelm Stenhammar
Gotemburg
Suécia

1912 - 1913
Glenn C. Mead
Filadelfia, Pennsylvania, EUA

1915 - 1916
Allen D. Albert
Minneapolis, Minnesota, EUA

1918 - 1919
John Pool
Washington, D.C., EUA

1921 - 1922
Crawford C. McCullough
Fort William, Ontario, Canadá

1924 - 1925
Everett W. Hill
Oklahoma City, Oklahoma, EUA

1927 - 1928
Arthur H. Sap
Huntington, Indiana, EUA

1930 - 1931
Almon E. Roth
Palo Alto, California, EUA

1933 - 1934
John Nelson
Montreal, Quebec, Canadá

1936 - 1937
Will R. Manier, Jr.
Nashville, Tennessee, EUA

1939 - 1940
Walter D. Head
Teaneck, Nueva Jersey, EUA

1942 - 1943
Fernando Carbajal
Lima, Perú

1945 - 1946
T.A. Warren
Wolverhampton, Staffordshire, Inglaterra

1948 - 1949
Angus S. Mitchell
Melbourne, Victoria, Australia

1951 - 1952
Frank E. Spain
Birminghan, Alabama, EUA

1954 - 1955
Herbert J. Taylor
Chicago, Illinois, EUA

1957 - 1958
Charles G. Tennet
Asheville, Carolina del Norte, EUA

1960 - 1961
J. Edd McLaughiln
Ralls, Texas, EUA

1963 - 1964
Carl P. Miller
Honolulu, Hawaii, EUA

1966 - 1967
Richard L. Evans
Salt Lake City, Utah, EUA

1969 - 1970
James F. Conway
Middlebury, Connecticut, EUA

1972 - 1973
Roy D. Hickman
Birmingham, Alabama, EUA

1975 - 1976
Ernesto Imbassahy de Mello
Niteroi, Brasil

1978 - 1979
Clem Renouf
Nambour, Queensland, Australia

1981 - 1982
Stanley E. McCaffr
Stockton, California, EUA

1984 - 1985
Carlos Canseco
Monterrey, Nuevo León, México

1987 - 1988
Charles C. Keller
California, Pennsylvania, EUA

1990 - 1991
Paulo V.C. Costa
Santos, Brasil

1993 - 1994
Robert Barth
Aarau, Suíça

1996 - 1997
Luis Vicente Giay
Arrecife, Buenos Aires, Argentina

1999 - 2000
Carlo Ravizza
Milão, Italia

2003-2004
Jonathan B. Majiyagbe
Kano, Nigéria