Library of Congress
Loc: Today in History: August 24: William Penn & the Panic of 1857
Library of Congress website on the Panic of 1857 as well as the acquisition of Maryland-Pennsylvania.
Wikimedia
Wikipedia: Nylon
Wikipedia provides detailed information on nylon, a synthetic polymer. Includes nylon's uses, history, and products.
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
Wwi Resource Centre:the Politics of Pecuniary Aggrandizement: 1912 1920
A chapter from a 1937 book by Ferdinand Ludnberg, America's 60 Families, discusses how World War I was financed and who profited from the war. About halfway through the page is mention of the War Industries Board and the heads of...
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.