From SEG Wiki
Roy F. Bennett served as the 1956-1957 SEG President.
Biography for SEG Presidential Candidacy 
Mr. Bennett served as Vice-President of the Society of Exploration Geophysicists (1954-1955) and was Vice-Chairman for SEG of the New York Oil Finders Convention of AAPG-SEPM-SEG in March, 1955.
- GEOPHYSICS, Vol. XXI, No. 2, April 1956.