Source:Old-basin-lot-plan
From Pittsburgh Streets
"Plan of the subdivision of lots Nos. 371, 372, 373 & 374 in Col. Wood's plan of Pittsburgh: Made for the City of Pittsburg at the request of James B. Murray, Chairman of Comm. on City Property." Laid out May 22, 1849; recorded May 23, 1849, Plan Book 1, p. 150. Allegheny County Recorder of Deeds 3778240.
