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  • Engineering Counterparts - Brief biographies and portraits of engineers associated with Ketchum.
  • Henry George Clopper Ketchum - Biography by Edward Chapman Bowes from the Canadian Biography Online.
  • Henry George Clopper Ketchum - Virtual exhibit from the University of New Brunswick. Features biography, manuscripts and printed materials, photographs, technical and architectural drawings, and maps.
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Last update: January 2, 2007 at 18:00:31 UTC - edit