|Origin of name||Elmer E. Ellsworth|
Ellsworth Avenue is named for Colonel Elmer E. Ellsworth (1837–1861), the leader of the 11th New York Infantry, popularly known as "Ellsworth's Zouaves." Ellsworth was the first Union officer killed in the Civil War; he was shot while removing a Confederate flag from the roof of a hotel in Alexandria, Virginia.
Bob Regan says that Ellsworth Avenue was originally called White's Lane. He also says that the street was opened on the day of Ellsworth's death, though he mistakenly gives Colonel Ellsworth the rank of general.
- George T. Fleming. "Names recall Civil War heroes: Soldiers of national and local fame well commemorated in Pittsburgh: Battles also live." Pittsburgh Gazette Times, May 30, 1915, fifth section, p. 2. Newspapers.com 85758872. [view source] fleming-civil-war
- Ned Schano. "Let's learn from the past: Col. Elmer Ellsworth." Pittsburgh Post-Gazette, Apr. 26, 2012, p. E-5. Newspapers.com 96471729. . [view source] lets-learn-ellsworth
- Bob Regan. The Names of Pittsburgh: How the city, neighborhoods, streets, parks and more got their names, p. 68. The Local History Company, Pittsburgh, 2009, ISBN 978-0-9770429-7-5. [view source] regan