Source:George-s-johnston-plan
From Pittsburgh Streets
"Draught of a subdivision into town lots of part of out lot № 143 and of the high rough land in the plan of the Reserve Tract Opposite Pittsburg: Now partly in the borough of Allegheny: Made for George S. Johnston." Laid out Aug. 7, 1838; recorded Aug. 18, 1838, Plan Book 1, p. 73. Allegheny County Recorder of Deeds 3778173.
