Mr. F. Schnyder, Switzerland
1960

Mr. W.A.E. Green, New Zealand
1961

Dr. Miguel E. Bustamante, Mexico
1962-1963

Mrs. Zena Harman, Israel
1964-1966

Dr. Joseph W. Willard, Canada
1966-1968

Dr. Ihsan Dogramaci, Turkey
1968-1970

Mr. Nils Thedin, Sweden
1970-1972

H.E. Mr. Narciso G. Reyes, Philippines
1973-1974

Dr. Hans Conzett, Switzerland
1974-1976

Dr. Antonio Ordó˝ez-Plaja, Colombia
1976-1977

H.E. Mr. Ferdinand L. Oyono,
U.R. of Cameroon
1977-1978

Mrs. Sadako Ogata, Japan
1978-1979

Dr. Zaki Hasan, Pakistan
1979-1980