Source:Sd-hays-plan-1
From Pittsburgh Streets
"S. D. Hays plan of lots № 1 in Baldwin and Lower St. Clair Townships laid out on Purpart № 20, estate of J. H. Hays dece'd." Laid out Oct. 1894; recorded Sept. 9, 1895, Plan Book 15, pp. 130–131. Allegheny County Recorder of Deeds 3781152.
