"He was really smart, he had a good sense of humor," said Chase Madrid, worked as a Hotshot for two years, but sat this year out.
"He was one of the smart guys in the crew who could get the weather, figure out the mathematics. It was just natural for him," Madrid said.
It was Caldwell's intelligence and know-how that got him appointed as a squad boss.
"Bob was a really good friend," added Gina Martinez, who knew many of the Hotshots.
"He was really smart, he had a good sense of humor," said Chase Madrid, worked as a Hotshot for two years, but sat this year out.
"He was one of the smart guys in the crew who could get the weather, figure out the mathematics. It was just natural for him," Madrid said.
It was Caldwell's intelligence and know-how that got him appointed as a squad boss.
"Bob was a really good friend," added Gina Martinez, who knew many of the Hotshots.