• “California Gold Rush (1848–1858).” Open Collections Program: Contagion, The Yellow Fever Epidemic

in Philadelphia, 1793, ocp.hul.harvard.edu/immigration/goldrush.html.

• California Star Newspaper. “California Star: ‘A Rush to the Gold Washings’ - 1848.” Symphonies in

Steel: San Francisco Bay Bridge and the Golden Gate, www.sfmuseum.org/hist6/star.html.

• “Chinese Immigration to the United States - For Teachers (Library of Congress).” Apple Computers: This

Month in Business History (Business Reference Services, Library of Congress), Victor, 

www.loc.gov/teachers/classroommaterials/presentationsandactivities/presentations/timeline/riseind/chinimms/.

• “Historical Impact of the California Gold Rush.” Norwich University Online,

online.norwich.edu/academic-programs/masters/history/resources/articles/historical-impact-of-the-california-gold-rush.

• “James K. Polk: Fourth Annual Message - December 5, 1848.” The American Presidency Project, 

www.presidency.ucsb.edu/ws/index.php?pid=29489.

• “Mining Techniques of the Sierra Nevada and Gold Country.” Farewell to Manzanar, 1973,

www.sierracollege.edu/ejournals/jsnhb/v2n1/miningtechniques.html.

• National Geographic Society. “After the Gold Rush.” National Geographic Society, 15 Oct. 2012,

www.nationalgeographic.org/news/after-gold-rush/.

• “National Oregon/California Trail Center >> Historical Trails >> Trail Basics.” Index of /HistoricalTrails,

www.oregontrailcenter.org/HistoricalTrails/TheStartingPoint.htm.

• “Panama - The California Gold Rush and the Railroad.” Portugal - FAMILY AND KINSHIP RELATIONS,

countrystudies.us/panama/5.htm.

• “The Annexation of Texas, the Mexican-American War, and the Treaty of Guadalupe-Hidalgo, 1845–

1848.” U.S. Department of State, U.S. Department of State, history.state.gov/milestones/1830-1860/texas-annexation.

• “The California Goldrush.” Legends of America, www.legendsofamerica.com/ca-goldrush/.

• “The California Gold Rush.” PBS, Public Broadcasting Service,

www.pbs.org/wgbh/americanexperience/features/goldrush-california/.

• “The Compromise of 1850.” Ushistory.org, Independence Hall Association,

www.ushistory.org/us/30d.asp.

• “The Gold Rush Impact on Native Tribes.” PBS, Public Broadcasting Service

www.pbs.org/wgbh/americanexperience/features/goldrush-value-land/.

• “The Journey Around Cape Horn.” America's Point of View,

www.nhusd.k12.ca.us/Pioneer/pages/classrooms/FourthGrade/4thGradeGold/pages/Sea.html.

• U.S. Department of State, U.S. Department of State, history.state.gov/milestones/1830-1860/gadsden-purchase.