Not service trucks.
Those are the Model T's of the Wanderwell Expedition, Aloha Wanderwell in front of Unit 2.
She was the first woman to circumnavigate the globe in an automobile....a Ford T with special body.
Thanks for the correction, and the link to the excellent website!
She donated those cars to Ford after her expedition ended.
Ford scrapped them for the war effort.
I believe that I read on the Forum awhile back where someone is recreating one or both of those cars.
I believe that would be Dan Treace.