Dunn, 13, was last seen on Dec. 27 in Colorado City.
Team Amber Rescue, named for DuBois, is a new volunteer child rescue group. The group was started by DuBois' mother, Carrie McGonigle, and has joined in partnerships with the Laura Recovery Center in Texas and KlaasKid, according to Examiner.com.
The LRC and KlaasKids will be in Colorado City this weekend to lead a large-scale community search. Organizers will spend Friday creating a plan and mapping out which areas have already been covered before opening the search up to volunteers on Friday morning.