Source:Ithamar-d-risher-plan
From Pittsburgh Streets
"Plan of lots laid out on Farm № 3: Made for Ithamar D. Risher: Situated in Mifflin Township Allegheny Co. Pa." Laid out Apr. 1897; recorded May 22, 1897, Plan Book 16, pp. 98–99. Allegheny County Recorder of Deeds 3781285.
