Question: Ethan Tecumseh Vishniac (born 1955) is an American astrophysicist, his wife Ilene Busch-Vishniac, the ninth president of the University of Saskatchewan (2012-2014), was previously Dean of the Faculty of Engineering at which American entrepreneur, abolitionist and philanthropist of 19th-century Baltimore, Maryland?
Sentence (from "Johns Hopkins"): Johns Hopkins (May 19, 1795 – December 24, 1873) was an American entrepreneur, abolitionist and philanthropist of 19th-century Baltimore, Maryland.
Relevant evidence: Yes