Background
Twesten, Gary Keith was born on August 1, 1941 in Belleville, Illinois, United States. Son of Henry Paul and Cornelia (Bassler) Twesten.
Twesten, Gary Keith was born on August 1, 1941 in Belleville, Illinois, United States. Son of Henry Paul and Cornelia (Bassler) Twesten.
Bachelor, Southern Illinois U., 1966; Master of Science, Southern Illinois U., 1973; student, Kenya Science College, 1976; student, Nairobi U., 1976.
Teacher physical science district 189, East St. Louis (Illinois) Senior High School, 1966; teacher biological science, photography District 201, Belleville Township H.S. West, since 1966; chair biological science department, Belleville Township H.S. West, since 1984. Owner J&G Arts Public Company, Belleville, 1973. Consultant, lecturer various groups and seminars.
Member National Wildlife Association, Nature Conservancy Association, Sierra Club (consultant, guide of nature trail trips), Audubon Society, Ducks Unlimited, St. Louis Artists Guild.
Married Janet Lynn Parsons, November 13, 1976. Children: Amanda Parsons-Twesten, Bryce Parsons-Twesten.