Twelve year old Jared Negrete and 16 year old Theresa "Trenny" Gibson have one thing in common: they disappeared from National Parks.  Jared disappeared from the San Bernadino National Forest while on a trip with his Boy Scout Troop in 1991.  In 1976, Trenny Gibson disappeared from the Great Smoky Mountains National Park while on a field trip. 

http://charleyproject.org/case/jared-michael-negrete

https://apnews.com/864df570a0a36cca918a231b284392bc

https://www.latimes.com/archives/la-xpm-2001-aug-09-me-32311-story.html

Cold Cases - Investigative Services (U.S. National Park Service) (nps.gov)

Trenny Lynn Gibson – The Charley Project

Appalachian Unsolved: Trenny Gibson, Lost in the Smokies | wbir.com

Teen Vanishes During School Field Trip | by Cat Leigh | True Crime by Cat Leigh | Medium

Remembering a little boy lost - November 23, 2006 - Crater Lake Institute - Enhancing the Visitors Experience

Samuel Savage Becker Boehlke – The Charley Project

Boy Missing In Oregon Park For 5 Days - CBS News