These sources were used in the Transcontinental Railroad portion of this page:

Blumberg, Rhoda. Full Steam Ahed: The Race to Build a Transcontinental Railroad. Washington, DC: National Geographic Society, 1996.

Combs, Barry B. Westward to Promontory: Building the Union Pacific across the Plains and Mountains. New York City: Promontory Press, 1969.

Scott, John Anthony. The Story of America. Washington, DC: The National Geographic Society, 1984.

These sources were used in the Oregon Trail portion of "How the West Was Sung:"

Hill, William E. The Oregon Trail: Yesterday and Today. Caldwell, ID: Caxton Printers, Ltd., 1987.

Freem, Elroy (illustrator). ...If Your Traveled West in a Covered Wagon. New York: Scholastic, Inc.

Scott, John Anthony. The Story of America. Washington, DC: The National Geographic Society, 1984.

These sources were utilized in the California Gold Rush portion of "How the West Was Sung:"

Alden, John R. "Gold Rush." The World Book Encyclopedia, Vol. 8. Chicago: Field Enterprises Educational Co., 1974

Scott, John Anthony. The Story of America. Washington, DC: The National Geographic Society, 1984.

Special Thanks as well to Greenhaus and everyone at the Mudcat Cafe for their generosity with the audio files of the Digital Traditions Folksong Database.