Research
Grant, Matthew G. Lewis and Clark, western trailblazers, (His Gallery of great Americans series. Explorers of America). Minnesota: Creative Education; Distributed by Children’s Press, Chicago, 1974.
Hill, Ralph Nading. Robert Fulton and the Steamboat. New York: Random House, New York, 1954.
"HowStuffWorks Videos "The Lewis and Clark Expedition: A Voyage of Discovery"." Howstuffworks "HowStuffWorks Video Channel". 20 Feb. 2009
http://videos.howstuffworks.com/hsw/20681-the-lewis-and-clark-expedition-a-voyage-of-discovery-video.htm.
Marcovitz, Hal. Sacagawea: Guide for the Lewis and Clark Expedition (Explorers of New Worlds). United States of America: Chelsea House Publications, 2001.
"Meriwether Lewis | Explorer." Lucidcafé Interactive Café and Information Resource. 5 Feb. 2009 http://www.lucidcafe.com/library/95aug/lewis.html.
Meriwether. "Meriwether Lewis - Google Search." Google. 4 Feb. 2009 http://www.google.com/search?sourceid=navclient&ie=UTF-8&q=Meriwether+Lewis.
"PBS - THE WEST - Meriwether Lewis." PBS. 9 Feb. 2009 http://www.pbs.org/weta/thewest/people/i_r/lewis.htm.
"PBS - THE WEST - William Clark." PBS. 2 Feb. 2009 http://www.pbs.org/weta/thewest/people/a_c/clark.htm.
Schaefer, Lola M. Robert Fulton (Famous People in Transportation). Mankato: Capstone Press, 2000.
"Telegraph." Officemuseum.com. 16 Feb. 2009 www.officemuseum.com/IMagesWWW/1877_Phelps_Electro-Motor_Printing_Telegraph_Sci_Amer_OM.jpg.
"William Clark | Explorer." Lucidcafé Interactive Café and Information Resource. 29 Jan. 2009 http://www.lucidcafe.com/library/95aug/clark.html.
World Book 2002 T.19"telegraph." World Book 2002 T.19. T.19 ed. 2002. World Book 2002 so-sz
World Book 2002so-sz"Steam Engines." World Book 2002 so-sz. So-Sz ed. 2002.
Picture Credits
Steamboat http://news.nationalgeographic.com/news/2002/11/1118_021118_steamboat.html
Steamboat
http://lincoln.lib.niu.edu/gal/steamboat.jpg
Steam Locomotive
http://www.flickr.com/photos/mva/216655543/
Lewis
http://www.pbs.org/lewisandclark/archive/idx_time.html
Maps
http://www.pbs.org/wgbh/amex/goldrush/map/index.html