Source:Lgeo-east-end-annexation
From Pittsburgh Streets
Mark A. Connelly. "Collins Township–Lawrenceville Borough–Liberty Township–Oakland Township–Peebles Township–Pitt Township to Pittsburgh City 1868 Merger." Local Geohistory Project. https://www.localgeohistory.pro/en/pa/event/collins-township-lawrenceville-borough-liberty-township-oakland-township-peebles-township-pitt-township-to-pittsburgh-city-1868-merger/.
