The photo with the number 76443-B in the lower right corner is a Ford model 11-T-S bomb service truck.
The similar looking Ford with the headlights mounted above the fenders rather than sunk into them is a Ford model 11-Y-S bomb service truck.
The above information is per the notes accompanying those photos in the collection of the Benson Ford Archives.
Best wishes,
David Doyle
www.DavidDoyleBooks.com