Source:Ordinance-1906-1907-308
From Pittsburgh Streets
"An ordinance establishing the grade of Ibsen alley, from Ikon alley to Isle alley." Pittsburgh city ordinance, 1906–1907, no. 308. Passed Nov. 2, 1906; approved Nov. 8, 1906. Ordinance Book 18, p. 121. In Municipal Record: Minutes of the Proceedings of the [Select and Common Councils] of the City of Pittsburgh for the Year 1906–1907, appendix, p. 125, Devine & Co., Pittsburgh, 1907 (Google Books 2rxEAQAAMAAJ; HathiTrust chi.096599013; Internet Archive Pghmunicipalrecord1906).
