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Jefferson Barracks Telephone Museum

The Jefferson Barracks Telephone Museum is a museum in St. Louis, Missouri, dedicated to telephone history, opened in 2016 in a restored 1896 building in Jefferson Barracks Park.

Jefferson Bible

The Jefferson Bible is a book Thomas Jefferson made around 1820 by cutting Gospel verses into a chronological account of Jesus' life and teachings, without miracles or a resurrection.

Jefferson C. Davis

Jefferson Columbus Davis (1828-1879), Union Civil War general and veteran of Fort Sumter, Pea Ridge, and Sherman's campaigns; killed General Bull Nelson in 1862 and abandoned freed slaves at Ebenezer Creek; later commanded Alaska and ended the Modoc War.

Jefferson City, Missouri

Jefferson City, Missouri: state capital and Cole County seat, founded 1821 as a planned capital, government moved in 1826; population 43,228 (2020), declining to an estimated 42,489 in 2025.

Jefferson County Public Schools (Colorado)

Jefferson County Public Schools (Jeffco, Jefferson County School District R-1) is the public school district of Jefferson County, Colorado, formed by 1950 consolidation under Fletcher Miller; known for Front Range-lowest per-pupil public funding, $40 million in 2026-27 budget cuts, and D'Evelyn's top state ranking.

Jefferson County Schools (Alabama)

Jefferson County Schools, also known as the Jefferson County Public School System, is the public school district for unincorporated Jefferson County, Alabama, spanning pre-kindergarten through grade 12 across 57 schools and more than 36,000 students.

Jefferson County, Alabama

Jefferson County, Alabama: the state's most populous county, founded 1819, county seat Birmingham. 674,721 residents (2020 census); iron, steel, and civil rights history; five-member county commission.

Jefferson County, Colorado, United States

Jefferson County, Colorado (Jeffco), county seat Golden, fourth most populous of Colorado's 64 counties with 582,910 residents (2020); one of the original 17 territorial counties of 1861, named for the unrecognized Jefferson Territory.

Jefferson County, Missouri, United States

Jefferson County, Missouri, county seat Hillsboro; organized December 8, 1818 from St. Louis and Ste. Genevieve counties, named for Thomas Jefferson; 226,739 residents (2020), 656.45 square miles, FIPS 29099.

Jefferson County, Texas, United States

Jefferson County, Texas: Gulf Coast county with seat Beaumont, formed 1836 as an original Republic of Texas county, named for Thomas Jefferson. Population 256,526 (2020); petrochemical and port economy in the Golden Triangle.

Jefferson Davis

Jefferson Davis (1808–1889), Mississippi senator, secretary of war, and only president of the Confederate States of America; captured 1865, imprisoned at Fort Monroe, later wrote The Rise and Fall of the Confederate Government.

Jefferson Farfán

Jefferson Farfán, in full Jefferson Agustín Farfán Guadalupe and nicknamed "la Foquita", is a Peruvian former winger who starred for PSV, Schalke 04, and Alianza Lima.

Jefferson Fisher

Jefferson Fisher (Jefferson Wendell Fisher) is a Texas board-certified personal injury trial lawyer, founder of Fisher Firm, and New York Times bestselling author of The Next Conversation, known for viral car-recorded communication videos and The Jefferson Fisher Podcast.

Jefferson Hack

Jefferson Hack (born 1971, Montevideo) is a British editor and publisher who co-founded Dazed & Confused with Rankin in 1991 and leads Dazed Media, publisher of Dazed, AnOther Magazine, Another Man, and Nowness.

Jefferson Han

Jefferson Y. Han is a research scientist who developed low-cost multi-touch sensing at NYU's Courant Institute and founded Perceptive Pixel, whose touch walls included CNN's Magic Wall.

Jefferson Highway

The Jefferson Highway was an early auto trail of about 2,278 miles from Winnipeg, Manitoba, to New Orleans, Louisiana, promoted from 1915 as the Pine to Palm Route.

Jefferson in Paris

Jefferson in Paris (1995) is a Merchant Ivory historical drama, directed by James Ivory and written by Ruth Prawer Jhabvala, starring Nick Nolte as Thomas Jefferson during his 1784-1789 ambassadorship, with Greta Scacchi as Maria Cosway and Thandie Newton as Sally Hemings; it was controversial for depicting a Jefferson-Hemings child.

Jefferson Lee Joseph

Jefferson Lee Joseph (Jefferson-Lee Joseph), French rugby sevens wing born 2002 in Baie-Mahault, Guadeloupe; won gold with France at Paris 2024, beating Fiji 28-7; plays for USA Perpignan.

Jefferson Lerma

Jefferson Lerma (Jefferson Andrés Lerma Solís), Colombian defensive midfielder born 1994 in El Cerrito; Atlético Huila, Levante, Bournemouth club-record £25m signing, Crystal Palace since 2023; Colombia at 2018 and 2026 World Cups and 2024 Copa América final.

Jefferson Lines

Jefferson Lines is a family-owned American intercity bus company headquartered in Minneapolis, Minnesota, serving about 15 states in the Upper Midwest and central United States since 1919.

Jefferson Memorial

Jefferson Memorial: neoclassical domed rotunda in Washington, D.C., honoring Thomas Jefferson. Designed by John Russell Pope, begun 1938, dedicated April 13, 1943 on Jefferson's 200th birthday; 19-foot bronze statue, Tidal Basin site aligned with the White House.

Jefferson Moraes

Jefferson Moraes is a Brazilian sertanejo singer and composer born in 1993 in Londrina, Paraná, whose "Péssima Hora" reached number two on the Billboard Brasil Hot 100 in 2024.

Jefferson Parish

Jefferson Parish, Louisiana: second most populous parish (440,781 in 2020), seat Gretna, established 1825, named for Thomas Jefferson, part of the New Orleans metro.

Jefferson Perez

Jefferson Pérez (Jefferson Leonardo Pérez Quezada), Ecuadorian race walker born 1974 in Cuenca; 1996 Olympic 20km walk gold, Ecuador's first Olympic medal, 2008 silver, and world champion 2003, 2005, 2007.

Jefferson Rojas

Jefferson Rojas, Dominican infielder born 2005 in Puerto Plata; signed by Cubs for $1 million in 2022, traded to Mets in 2026 for Clay Holmes and Tyrone Taylor; MLB Pipeline No. 68 prospect.

Jefferson Shreve

Jefferson Shreve (born 1965) is the Republican U.S. representative for Indiana's 6th District since 2025, a self-storage businessman, former Indianapolis city-county councilman, and 2023 mayoral candidate who spent over $13.5 million and lost to Joe Hogsett.

Jefferson Starship

Jefferson Starship, also styled Jefferson Starship band, is the American rock group formed in 1974 from Jefferson Airplane, known for Red Octopus, the name's 1970 debut on Blows Against the Empire, its 1985 retirement, and Kantner's 1992 revival.

Jefferson W. Tester

Jefferson W. Tester is an American chemical engineer, professor of sustainable energy systems at Cornell University, elected to the National Academy of Engineering in 2021 for renewable energy systems.

Jefferson–Hemings controversy

Jefferson–Hemings controversy: dispute over whether Thomas Jefferson fathered children with enslaved Sally Hemings, alias Sally Hemings paternity question. Settled by 1998 Nature DNA study and Monticello's 2000 report; declared a settled historical matter in 2018.

Jeffersonian democracy

Jeffersonian democracy: political movement of Thomas Jefferson and the Democratic-Republican Party (1790s–1820s), favoring states' rights, agrarianism, strict constitutional construction, and the Revolution of 1800, opposed to Hamiltonian Federalism.