Bachelor of Science, Texas Technical University, 1970. Doctor of Philosophy, Cornell University., 1975.
Research assistant Cornell Univercity, Ithaca, New York, 1970-1975. State extension entomologist Texas Agriculture Extension Service, College Station, 1975-1976. Instructor biology Texas Southmost College, Brownsville, since 1976.
Researcher mercury levels in Snook at Portuguese of Brownsville.
Member Gulf Coast Coalition for Public Health, Brownsville, since 1982. Served with United States National Guard, 1970-1976. Writing grantee National Science Foundation, 1980.
Member Gulf Coast Conservation Association, National Wildlife Association Theta Kappa (sponsor honorary society 1985).
Married Lee Cecelia Tole, June 23, 1972. Children: G. Daniel, Adriana.