Did you mean: Willem de Haan
Wilhem de Haan
Dutch zoologist
Wilhem de Haan was a Dutch zoologist. He specialised in the study of insects and crustaceans, and was the first keeper of invertebrates at the Rijksmuseum in Leiden, now Naturalis. He was forced to retire in 1846, when he was partially paralysed... Wikipedia
Born: February 7, 1801, Amsterdam, Netherlands
Died: April 15, 1855 (age 54 years), Leiden, Netherlands
Partner: Sophie Elisabeth van Vollenhoven (1841–)