The house the old woman lives in is the Bates house from psycho.
Stock footage of the brushfire was taken from contemporary news film footage of the 1968 "Canyon Fire" above Azusa, California.
Tony Dow & Bob Hastings have both made appearances in Emergency, Dragnet & Adam-12, as different characters.
Some early Stock Footage shows a WWII B-17 bomber dropping Fire Retardant. The bombers were converted to drop 2,000lbs of Fire Retardant. They were used into the 1980's.
Art Balinger has a recurring role as Battallion Chief Conrad of Battallion 14. He previously portrayed a Detective Captain in Dragnet.