Source:Town-country-1816
From Pittsburgh Streets
John Armstrong. The Pittsburgh Town & Country Almanac: For rogues and honest folks: 1816: Being leap year, and from the fourth of July, the 41st year of American independence: Adapted to the meridian of Pittsburgh, lat. 40° 33′ N. of the equator, and long. 80° 38′ W. of London. R. Patterson, Pittsburgh, 1816. Internet Archive pittsburghtownco1816arms.
