This from Mike Summa:

The first picture is a 1967 GMC/Pierce Squad Truck from Merrionette Park, Illinois.  500-GPM, front mounted pump,  70′ electronic ladder, carries aux. generators, but no water.
Thank you,
Mike Summa
Merrionette Park FD history

Merrionette Park Squad 1, 1967 GMC/Pierce Squad Truck from Merrionette Park, Illinois. 500-GPM, front mounted pump, 70′ electronic ladder, carries aux. generators, but no water. Mike Summa photo