Source:Mcelhinny-plan-ext-1

From Pittsburgh Streets

"Extension № 1. McElhinny plan of lots: Laid out for McElhinny heirs: Situate in Mifflin Twp. Allegheny Co. Pa." Laid out May 1901; recorded Sept. 6, 1901, Plan Book 19, p. 24. Allegheny County Recorder of Deeds 3781754.