Timeline of inventions, 1752-1990. Great place to start! http://www.pbs.org/wgbh/amex/telephone/timeline/timeline_text.html
Inventors Hall of Fame. Search for your inventor alphabetically. Type the last name, first name. http://www.invent.org/hall_of_fame/1_0_0_hall_of_fame.asp
Biographies of Inventors. Search by last name, first name. http://www.biography.com/
19th century Inventions. Not all are Americans. http://www.enchantedlearning.com/inventors/1800a.shtml
MIT site for inventors/inventions http://web.mit.edu/invent/invent-main.html
Women inventors of the 1800s http://staff.lib.muohio.edu/~shocker/FemInv/
American inventors by state http://inventors.about.com/library/bl_by_state_inventors.htm
Top ten African-American inventors http://teacher.scholastic.com/activities/bhistory/inventors/
Inventors from "about.com". Type the name of your inventor in the search box. http://inventors.about.com/
MSN Encarta Online - encyclopedia http://encarta.msn.com/
Smithsonian Spotlight on Inventors http://smithsonianeducation.org/spotlight/inventors1.html
Encyclopedia Britannica Online http://www.britannica.com/
Cyrus McCormick http://www.vaes.vt.edu/steeles/mccormick/bio.html
Elijah McCoy http://www.africawithin.com/bios/elijah_mccoy.htm
Samuel Morse http://web.mit.edu/invent/iow/morse.html
Elisha Otis http://inventors.about.com/library/inventors/blelevator.htm
George Pullman http://inventors.about.com/library/inventors/blrailroad.htm
Eli Whitney http://www.eliwhitney.org/
Linus Yale, Jr. http://www.yalelock.com/Yale/Templates/GlobalNormalWithMenu____142.aspx
David Bushnell http://web.mit.edu/invent/iow/bushnelld.html
ELias Howe http://www.history.rochester.edu/Scientific_American/mystery/howe.htm
Isaac Singer http://www.rootsweb.ancestry.com/~nyrensse/bio206.htm
Walter Hunt http://www.answers.com/topic/walter-hunt-1
Christopher Sholes http://www.invent.org/hall_of_fame/168.html
John Deere http://www.invent.org/hall_of_fame/39.html
George Westinghouse, Jr. http://www.pbs.org/wgbh/theymadeamerica/whomade/westinghouse_hi.html
Levi Strauss http://inventors.about.com/od/sstartinventors/a/Levi_Strauss.htm
Henry Shreve http://riverweb.cet.uiuc.edu/TECH/TECH7.htm
Gail Borden http://www.famoustexans.com/GailBorden.htm
Luther Burbank http://inventors.about.com/library/inventors/blburbank.htm
Robert Fulton http://www.robertfulton.org/
Charles Goodyear http://www.goodyear.com/corporate/history/history_story.html
Significant historical patents in the United States http://www.uspat.com/historical/index.shtml
Historical prices of consumer goods - 1869 - Carthage, Missouri http://powersmuseum.com/exhibits/pastexhibits/carthagein1800s.html
Historical prices of goods on the Oregon Trail http://www.endoftheoregontrail.org/outfit.html