Source:Lawrenceville-plan
From Pittsburgh Streets
"A plan of the Town of Lawrenceville laid out by William B. Foster on the first day of June A. D. 1814." Laid out June 1, 1814; recorded Jan. 26, 1815. In Tom Powers and James Wudarczyk, The Allegheny Arsenal Handbook: A Guidebook to Pittsburgh's Former Military Facility in Stories, Illustrations, Maps, and Photographs, pp. 4–5, Lawrenceville Historical Society, Pittsburgh, 2022, ISBN 978-0-9773469-3-6.
