Source:Wm-o-leslie-plan
From Pittsburgh Streets
"Plan of building lots, laid out by Wm. O. Leslie, Esq. in the village of East Liberty, Allegheny County Penna. surveyed and subdivided by Heastings and Preiser, civil engineers and land surveyors, Pittsburgh, Pa." Recorded July 9, 1852, Plan Book 2, p. 16. Allegheny County Recorder of Deeds 3778313.
