Source:Ithamar-d-risher-amended-plan
From Pittsburgh Streets
"Amended plan of lots laid out on Farm № 3 made for the Union Trust Company executer [sic] & trustee under the will of Ithamer [sic] D. Risher dec'd.: Situated in Mifflin Township Allegheny Co. Pa." Laid out May 1899; recorded Apr. 10, 1900, Plan Book 17, pp. 190–191. Allegheny County Recorder of Deeds 3781537.
