Gerard Troost

Gerardus Troost
Born	(1776-03-05)March 5, 1776 's-Hertogenbosch, Netherlands
Died	August 14, 1850(1850-08-14) (aged 74) Nashville, Tennessee, US
Nationality	American-Dutch
Scientific career
Fields	Mineralogy, biology

Gerardus Troost (March 5, 1776 – August 14, 1850) was a Dutch-American medical doctor, naturalist, mineralogist, and founding member and first president of the Philadelphia Academy of Natural Sciences.^[1]