Other
Cha, Inc.: History of the Dupont's and Their Discovery
This site from CHA, Inc. gives a biographical background of the Dupont's and gives information on one of its greatest discoveries, nylon.
Other
Du Pont Heritage: Eleuthere Irenee Du Pont
The timeline at this resource begins with E. I. DuPont. Click on his picture for a brief biography that links to a more in-depth version of this company founder.