Source:Giffin-place-revised-plan
From Pittsburgh Streets
"Revised plan of blocks 8½, 12, 13, & 14 in S. J. Macfarren's Giffin Place plan, Lower St. Clair Twp, Allegheny County, Pa., Plan Book vol. 12, page 113." Recorded July 22, 1892, Plan Book 13, p. 21. Allegheny County Recorder of Deeds 3780781.