I think for the most part, I would agree on the responses you have received to date on potential significant rescue/medical issues, so I think I will try and give you some ideas (although you have covered several yourself already) on what I would suggest your backup responders might have with them when meeting you to take care of moderate issues.

Water and food
Cooking Set/stove and fuel
First Aid supplies to backfill what you may have used during the trip to date
Extra blankets and/or seeping bags
Tarps
Rope/cordage/paracord
Lighting devices: flashlights, lanterns, batteries and/or fuel, strobes
Matches, lighters, dry kindling, fire starters
Duct tape
Hiking poles/staffs
Cell phones, additional radios
Various sized or backup clothing
Jackets/coats/sweaters