"Lincoln's Founding". Nebraska State Historical Society. January 11, 2006. Archived from the original on November 15, 2006. Retrieved October 18, 2015.
Weingroff, Richard F. (November 18, 2015). "U.S. 6 – The Grand Army of the Republic Highway". Highway History. Federal Highway Administration. U.S. Department of Transportation. Retrieved August 18, 2016.
"City Flag". www.lincoln.ne.gov. Retrieved November 28, 2024.
"Resource Categorization of Nebraska's Eastern Saline Wetlands"(PDF). U.S. Army Corps of Engineers, Nebraska Game U.S. Army Corps of Engineers and Parks Commission, Nebraska Department of Environmental Quality, U.S. Environmental Protection Agency and U.S. Fish and Wildlife Service. Retrieved September 13, 2016.
Mead & Hunt, Inc.; Heritage Research, Ltd. (August 2002). Jacobson, Kent A. (ed.). "Nebraska Historic Highway Survey"(PDF). Nebraska Department of Roads. Nebraska State Historical Society / Nebraska Department of Roads. Archived from the original(PDF) on January 16, 2016. Retrieved October 19, 2015.
Hall, Kay (January 31, 2019). "Final Call for Lincoln Telephone". Nebraska Stories. Season 10. 4:30 minutes in. Public Broadcasting Service. Nebraska Public Media. Retrieved December 6, 2021.
"Threaded Station Extremes". ThreadEx. NOAA's National Centers for Environmental Information (NCEI) and the National Weather Service (NWS), the Northeast Regional Climate Center (NRCC). Retrieved September 13, 2016.
Zimmer, Edward. "Lincoln – Lancaster County". Virtual Nebraska – Nebraska ... Our Towns. University of Nebraska-Lincoln. Archived from the original on March 15, 2016. Retrieved March 16, 2016.
"More About Nebraska Statehood". Nebraska State Historical Society. Archived from the original on January 21, 2001. Retrieved August 17, 2016.
Zimmer, Edward. "Lincoln – Lancaster County". Virtual Nebraska – Nebraska ... Our Towns. University of Nebraska-Lincoln. Archived from the original on March 15, 2016. Retrieved March 16, 2016.
Mead & Hunt, Inc.; Heritage Research, Ltd. (August 2002). Jacobson, Kent A. (ed.). "Nebraska Historic Highway Survey"(PDF). Nebraska Department of Roads. Nebraska State Historical Society / Nebraska Department of Roads. Archived from the original(PDF) on January 16, 2016. Retrieved October 19, 2015.
"Nebraska Trailblazer, Aviation in Nebraska"(PDF). Nebraska History.org. Nebraska State Historical Society. Archived from the original on June 16, 2010. Retrieved May 15, 2015.