U.S. Route 40 (English Wikipedia)

"Historic National Road, Indiana". America's Byways. Federal Highway Administration. 2007. Archived from the original on March 25, 2010. Retrieved May 22, 2007.
"Historic National Road, Ohio". America's Byways. Federal Highway Administration. 2007. Archived from the original on May 12, 2009. Retrieved May 23, 2007.

cosmos-monitor.com

Missouri State Highway Commission (September 19, 1922). Route Map Showing Designated Routes and Numbers (Map). Missouri State Highway Commission.^{[full citation needed]}

deldot.gov

"AADT Tables" (PDF). Traffic Summary. Delaware Department of Transportation. 2006. p. 7.^{[dead link]}

dot.gov

fhwa.dot.gov

Weingroff, Richard F. (1997). "From Names to Numbers: The Origins of the U.S. Numbered Highway System". Federal Highway Administration. Retrieved May 22, 2007.

kshs.org

Kansas Historical Society (2017). "U.S. 40. The Main Street of America". Kansas Memory.

loc.gov

tile.loc.gov

Fisher, James; Snyder, John W. Sacramento River Bridge (Tower Bridge; M Street Bridge), HAER No. CA-73 (PDF) (Report). National Park Service. Retrieved July 27, 2015.

militarytimes.com

thefallen.militarytimes.com

"Army Staff Sgt. Wesley R. Williams". Honor The Fallen. Military Times. Retrieved September 3, 2015.

n9jig.com

"Routes 21–40". Illinois Highway Page. 2007. Retrieved May 22, 2007.^{[self-published source]}

napavalleyregister.com

Eberling, Barry (April 1, 2017). "South Napa County Boasts Old Lincoln Highway Route". Napa Valley Register. Napa, CA. Retrieved April 1, 2017.

ohio.gov

codes.ohio.gov

"5533.255 Staff Sergeant Wesley Williams Memorial Highway". Ohio Revised Code. March 23, 2015. Retrieved September 3, 2015 – via LAW Writer.

route40.net

Brusca, Frank X. (2002). "Topeka, Kansas". U.S. Route 40: America's Golden Highway. route40.net. Archived from the original on September 27, 2007. Retrieved May 22, 2007.^{[self-published source]}
Brusca, Frank X. (2002). "US 40 Scrapbook: Indiana". U.S. Route 40: America's Golden Highway. route40.net. Archived from the original on July 28, 2007. Retrieved May 22, 2007.^{[self-published source]}
Brusca, Frank X. (2002). "Native American Footpaths". U.S. Route 40: America's Golden Highway. route40.net. Archived from the original on September 27, 2007. Retrieved May 21, 2007.^{[self-published source]}
Brusca, Frank X. (2002). "Eastern Post Roads". U.S. Route 40: America's Golden Highway. route40.net. Archived from the original on September 27, 2007. Retrieved May 21, 2007.^{[self-published source]}
Brusca, Frank X. (2002). "Broddock's Road". U.S. Route 40: America's Golden Highway. route40.net. Archived from the original on April 26, 2007. Retrieved May 21, 2007.^{[self-published source]}
Brusca, Frank X. (2002). "Maryland's Turnpikes". U.S. Route 40: America's Golden Highway. route40.net. Archived from the original on September 27, 2007. Retrieved May 21, 2007.^{[self-published source]}
Brusca, Frank X. (2002). "Zane's Trace". U.S. Route 40: America's Golden Highway. route40.net. Archived from the original on August 20, 2007. Retrieved May 21, 2007.^{[self-published source]}
Brusca, Frank X. (2002). "National Road". U.S. Route 40: America's Golden Highway. route40.net. Archived from the original on April 28, 2007. Retrieved May 21, 2007.^{[self-published source]}
Brusca, Frank X. (2002). "Victory Highway". U.S. Route 40: America's Golden Highway. route40.net. Archived from the original on August 20, 2007. Retrieved May 21, 2007.^{[self-published source]}
Hobbs, Howard F. (c. 1926). "Notes About The Victory Highway". Mohawk-Hobbs Guide to the Victory Highway. Mohawk Rubber Company. Archived from the original on May 19, 2007. Retrieved May 22, 2007.
Brusca, Frank X. (2002). "Alignments since 1925". U.S. Route 40: America's Golden Highway. route40.net. Archived from the original on September 27, 2007. Retrieved May 21, 2007.^{[self-published source]}
Brusca, Frank X. (2002). "History of Route 40". U.S. Route 40: America's Golden Highway. route40.net. Archived from the original on July 17, 2007. Retrieved May 21, 2007.^{[self-published source]}

route56.com

Kennedy, Richie (2002). "US 40". Kansas Highway Route Log. Retrieved January 12, 2009.^{[self-published source]}

springfieldnewssun.com

Orozco, Jessica (June 13, 2023). "Leaving a legacy: National Road dedicated to fallen Deputy Yates". Springfield News-Sun. Retrieved June 15, 2023.

state.il.us

dot.state.il.us

Illinois Technology Transfer Center (2006). "T2 GIS Data". Retrieved November 8, 2007.

state.md.us

dnr.state.md.us

"Sideling Hill Exhibit Center". Sideling Hill Wildlife Management Area. Maryland Department of Natural Resources. 2000. Archived from the original on May 20, 2007. Retrieved May 25, 2007.

state.nj.us

"Route 40" (PDF). Straight Line Diagrams. New Jersey Department of Transportation.

stltoday.com

"News – Special Reports". STLtoday. Archived from the original on June 8, 2008.

thenewi64.org

"The New I-64". Missouri Department of Transportation.

transportation.org

sp.route.transportation.org

Special Committee on U.S. Route Numbering (October 17, 2008). "Special Committee on U.S. Route Numbering Meeting Minutes" (Report). Washington, DC: American Association of State Highway and Transportation Officials. Archived from the original (DOC) on October 16, 2017.

umd.edu

wam.umd.edu

"Map of Mount Vernon Place" (Map). Mount Vernon Place: 'The Heart of Baltimore'. College of Library and Information Services, University of Maryland, College Park, Maryland. 1998. Archived from the original on June 9, 2007. Retrieved May 25, 2007.

usends.com

"Current and historic US Highway ends in Atlantic City NJ". US Highway Ends. mapguy. 2006. Archived from the original on December 22, 2010. Retrieved May 25, 2007.^{[self-published source]}

utah.gov

le.utah.gov

"Utah Code Annotated § 72-4-109(8)". Utah Code – Statutes and Constitution. 2006. Archived from the original on February 9, 2007. Retrieved May 21, 2007.

visitrichmond.org

"Area History". Richmond/Wayne County, Indiana. visitrichmond.org. Archived from the original on May 7, 2007. Retrieved May 22, 2007.

web.archive.org

"Utah Code Annotated § 72-4-109(8)". Utah Code – Statutes and Constitution. 2006. Archived from the original on February 9, 2007. Retrieved May 21, 2007.
Brusca, Frank X. (2002). "Topeka, Kansas". U.S. Route 40: America's Golden Highway. route40.net. Archived from the original on September 27, 2007. Retrieved May 22, 2007.^{[self-published source]}
Special Committee on U.S. Route Numbering (October 17, 2008). "Special Committee on U.S. Route Numbering Meeting Minutes" (Report). Washington, DC: American Association of State Highway and Transportation Officials. Archived from the original (DOC) on October 16, 2017.
"News – Special Reports". STLtoday. Archived from the original on June 8, 2008.
"Historic National Road, Indiana". America's Byways. Federal Highway Administration. 2007. Archived from the original on March 25, 2010. Retrieved May 22, 2007.
"Area History". Richmond/Wayne County, Indiana. visitrichmond.org. Archived from the original on May 7, 2007. Retrieved May 22, 2007.
Brusca, Frank X. (2002). "US 40 Scrapbook: Indiana". U.S. Route 40: America's Golden Highway. route40.net. Archived from the original on July 28, 2007. Retrieved May 22, 2007.^{[self-published source]}
"Historic National Road, Ohio". America's Byways. Federal Highway Administration. 2007. Archived from the original on May 12, 2009. Retrieved May 23, 2007.
"Sideling Hill Exhibit Center". Sideling Hill Wildlife Management Area. Maryland Department of Natural Resources. 2000. Archived from the original on May 20, 2007. Retrieved May 25, 2007.
"Map of Mount Vernon Place" (Map). Mount Vernon Place: 'The Heart of Baltimore'. College of Library and Information Services, University of Maryland, College Park, Maryland. 1998. Archived from the original on June 9, 2007. Retrieved May 25, 2007.
"U.S. Highway 40 / Pulaski Highway". Maryland @ AAroads.com. 2005. Archived from the original on June 21, 2007. Retrieved May 25, 2007.^{[self-published source]}
"Current and historic US Highway ends in Atlantic City NJ". US Highway Ends. mapguy. 2006. Archived from the original on December 22, 2010. Retrieved May 25, 2007.^{[self-published source]}
Brusca, Frank X. (2002). "Native American Footpaths". U.S. Route 40: America's Golden Highway. route40.net. Archived from the original on September 27, 2007. Retrieved May 21, 2007.^{[self-published source]}
Brusca, Frank X. (2002). "Eastern Post Roads". U.S. Route 40: America's Golden Highway. route40.net. Archived from the original on September 27, 2007. Retrieved May 21, 2007.^{[self-published source]}
Brusca, Frank X. (2002). "Broddock's Road". U.S. Route 40: America's Golden Highway. route40.net. Archived from the original on April 26, 2007. Retrieved May 21, 2007.^{[self-published source]}
Brusca, Frank X. (2002). "Maryland's Turnpikes". U.S. Route 40: America's Golden Highway. route40.net. Archived from the original on September 27, 2007. Retrieved May 21, 2007.^{[self-published source]}
Brusca, Frank X. (2002). "Zane's Trace". U.S. Route 40: America's Golden Highway. route40.net. Archived from the original on August 20, 2007. Retrieved May 21, 2007.^{[self-published source]}
Brusca, Frank X. (2002). "National Road". U.S. Route 40: America's Golden Highway. route40.net. Archived from the original on April 28, 2007. Retrieved May 21, 2007.^{[self-published source]}
Brusca, Frank X. (2002). "Victory Highway". U.S. Route 40: America's Golden Highway. route40.net. Archived from the original on August 20, 2007. Retrieved May 21, 2007.^{[self-published source]}
Hobbs, Howard F. (c. 1926). "Notes About The Victory Highway". Mohawk-Hobbs Guide to the Victory Highway. Mohawk Rubber Company. Archived from the original on May 19, 2007. Retrieved May 22, 2007.
Brusca, Frank X. (2002). "Alignments since 1925". U.S. Route 40: America's Golden Highway. route40.net. Archived from the original on September 27, 2007. Retrieved May 21, 2007.^{[self-published source]}
Brusca, Frank X. (2002). "History of Route 40". U.S. Route 40: America's Golden Highway. route40.net. Archived from the original on July 17, 2007. Retrieved May 21, 2007.^{[self-published source]}

whio.com

Staff (April 25, 2015). "Portion of U.S. 40 renamed to honor fallen soldier". WHIO-TV. Retrieved September 3, 2015.

wikimedia.org

commons.wikimedia.org

Bureau of Public Roads & American Association of State Highway Officials (November 11, 1926). United States System of Highways Adopted for Uniform Marking by the American Association of State Highway Officials (Map). 1:7,000,000. Washington, DC: United States Geological Survey. OCLC 32889555. Retrieved November 7, 2013 – via Wikimedia Commons.

wnhpc.com

Motts, Millie. "Map of Downtown Reno – 1953". Western Nevada Historical Photo Collection. Retrieved May 30, 2018.

worldcat.org

Bureau of Public Roads & American Association of State Highway Officials (November 11, 1926). United States System of Highways Adopted for Uniform Marking by the American Association of State Highway Officials (Map). 1:7,000,000. Washington, DC: United States Geological Survey. OCLC 32889555. Retrieved November 7, 2013 – via Wikimedia Commons.