Notes:Tyson Way
From Pittsburgh Streets
1887-12: Source:Villa-place-plan: "Alley 20′"
1889-06: Source:Villa-place-revised-plan: "Alley N. 10° 55′ W. 20′"
1891-02-14 (recorded 1891-07-06): Source:Brushton-borough-plan: "Alley 20′"
1904: Source:Hopkins-1904-vol-2, plate 21: unlabeled
1910: Source:Hopkins-1910: "Tyson Al."
