Thomas Say (June 27, 1787 - October 10, 1834) was an American naturalist, entomologist, malacologist and carcinologist. He was a taxonomist and is often considered to be the founder of descriptive entomology in the United States and one of the founding fathers of the Entomological Society of America (ESA). ESA maintains several series of publications and awards that are named after Say. Thomas Say was born in Philadelphia into a prominent Quaker family. Wikipedia
..., included the following: Thomas Say (1787-1834) naturalist, father of American entomology Charles-Alexandre Lesueur (1778-1846) naturalist, artist Gerard Troost (1776-1850) ... faculty.evansville.edu/ck6/bstud/nh.html
Hundreds of species of insects and mollusks were first described by Say, so that their taxa bear his name. faculty.evansville.edu/ck6/bstud/sayfish.html
The definitive Wikipedia entry for Thomas Say. Wikipedia is the biggest multilingual free-content encyclopedia on the Internet. en.wikipedia.org/wiki/Thomas_Say
Ampullaria depressa Say, 1829 drawn by Miss Helen Lawson, engraved by the Alexander Lawson firm, and colored by Miss Lawson. www.jaxshells.org/hald.htm
