Isaac W. Frank, one of William and Pauline Frank's sons, was born in 1855 and educated in Pittsburgh schools and at Rensselaer Polytechnic Institute, where he received his civil engineering degree in 1876. After holding engineering positions inNew York, Mississippi, Colorado and Pittsburgh, he became involved in the manufacture of rolling mill and steel works machinery through his position as Secretary and Engineer at the Lewis Foundry and Machine Company in PIttsburgh. In 1892, he organized the Frank-Kneeland Machine Company, and later the United Engineering and Foundry Company, of which he was president until 1919. The Franks were founding members of Rodef Shalom Congregation, and family members are buried in the congregation's West View cemetery.
From the description of Frank family papers 1869-1921 [manuscript] papers (Historical Society of W Pennsylvania). WorldCat record id: 233977013
