Glen and Bessie Hyde - Missing

Newlyweds Glen and Bessie Hyde took a trip through the Grand Canyon to celebrate their recent marriage. Unfortunately, both of them disappeared before making it to their end destination. 
Sources:

• 
  https://grcahistory.org/sites/colorado-river-corridor/hyde-river-tragedy/
  
• https://www.boatblurb.com/post/boating-s-biggest-unsolved-mysteries-glen-bessie-hyde-the-grand-canyon-disappearance
  
• https://medium.com/inside-the-simulation/the-mysterious-disappearance-of-glen-and-bessie-hyde-d9d56e2d0299
  
• https://www.latimes.com/archives/la-xpm-2001-jun-29-cl-16386-story.html
  
• https://www.sandrawagnerwright.com/the-disappearance-of-glen-bessie-hyde/
  
• https://azdailysun.com/sunk-without-a-trace/article_c8671ed5-443b-568e-a91f-a1922a6a8ba2.html
  
• https://www.williamsnews.com/news/2009/apr/21/museum-collection-helps-with-cold-case/?templates=mobile