Esplanade Street ran for one block from East North Avenue to Hemlock Street, just west of James Street, on the site of the present Allegheny General Hospital. Several sources, beginning with Margaret Carlin in 1966, include it in lists of North Side streets named in commemoration of the Mexican–American War, but the specific location or event to which this claim refers is unclear.
- Margaret Carlin. "How our streets got their names." Pittsburgh Press, Feb. 6, 1966, Pittsburgh's Family Magazine, p. 10. Newspapers.com 149098376. [view source] carlin
- Joe Browne. "Streets are index of local history." Pittsburgh Post-Gazette, Sept. 28, 1983, p. 37. Newspapers.com 89790718. [view source] browne-streets
- Bob Regan. The Names of Pittsburgh: How the city, neighborhoods, streets, parks and more got their names, p. 60. The Local History Company, Pittsburgh, 2009, ISBN 978-0-9770429-7-5. [view source] regan