Lewis David de Schweinitz was a German-American botanist and mycologist from Bethlehem, Pennsylvania. Considered the "Father of North American Mycology," he also made significant contributions to botany. Wikipedia
Born: February 13, 1780, Bethlehem, PA
Died: February 8, 1834 (age 53 years), Bethlehem, PA
Great-grandparent: Erdmuthe Dorothea of Reuss-Ebersdorf
Author abbrev. (botany): Schwein