Theophilus Van Kannel
He was born in Philadelphia, Pennsylvania, USA. Van Kannel, who was recognized for his invention with the John Scott Medal by the Franklin Institute in 1889, founded the Van Kannel Revolving Door Company, which eventually was bought out by the International Steel Company in 1907. International Steel Company is the parent company of International Revolving Door Company.
- Theophilus Van Kannel, NNDB (Notable Names Database).
- Hall of Fame / Inventor Profile: Theophilus Van Kannel Archived 2009-08-27 at the Wayback Machine, National Inventors Hall of Fame.
- About Us Archived 2007-11-07 at the Wayback Machine, International Revolving Door Company.
- Jeffrey Stanton, Coney Island — Independent Rides, 1997.