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Born: 1/31/1874, Died: 5/30/1943

An 1899 graduate of the University of Pennsylvania, John E. Zimmerman became partner in one of the most prosperous engineering and management companies in Philadelphia, Day & Zimmermann. Zimmermann served as president of Day & Zimmermann from 1926 to 1929. He also worked as president and later chair of the United Gas Improvement Co. in Philadelphia.

He was born in Buenos Aires, Argentina, the son of John C. and Anna Cecilia (Mackinley) Zimmermann. He received part of his education in the National College and University of Buenos Aires before coming to the University of Pennsylvania. He subsequently apprenticed as a surveyer on the the Pacific Roadoad in Argentina, in the Great Southern Railway shops, also in Argentina, and then in the shops of George V. Cresson in Philadelphia. For a time he worked as superintendent and secretary of the American Pulley Company. He then established Day & Zimmermann with Charles Day, his classmate from the University of Pennsylvania.

Written by Sandra L. Tatman.

Clubs and Membership Organizations

  • Engineers Club
  • Racquet Club
  • Rittenhouse Club
  • American Society of Mechanical Engineers

School Affiliations

  • University of Pennsylvania


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