History Vintage airline service truck

Vintage airline service truck at an airport in 1969. Plane in the background is a United Airlines DC-6B. The vintage of the truck is unknown. Perhaps the HAMB can ID it. Many thanks.

 

Looks like a 1937 Chevy panel truck.

 

'37 Chev.

 

'37 Chevy, no doubt. Are you livin' under a rock?

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I don't profess to be an ace car spotter, or even a truck spotter. The image is actually from a home movie on YouTube about the plane. My guess is the truck was never licenced for the road and lived its life at a mid-western states airport for 35 or so years and one night the engine froze over and that was the end. Or was it? Maybe this will be a barn find truck next week on the HAMB.
It's not my movie but it's called "Dad in the left seat" Here it is.