John Eleuthère du Pont was an American convicted murderer. An heir to the du Pont family fortune, he was a published ornithologist, philatelist, conchologist, and sports enthusiast. Du Pont died in prison while serving a sentence of thirty years for the murder of Dave Schultz.

Conchology is the study of mollusc shells. Conchology is one aspect of malacology, the study of molluscs; however, malacology is the study of molluscs as whole organisms, whereas conchology is confined to the study of their shells. It includes the study of land and freshwater mollusc shells as well as seashells and extends to the study of a gastropod's operculum.