No, the story doesn't follow from one to another, it's just a variety of tractors ( Grey Fergie, MF35, Fordson etc ). This mat had my dad and I puzzled though as the ford isn't very deep and isn't running particularly fast ( not enough to endanger the running of the tractor ) so why not just drive through it? Why stop and wind it in gear through the water, and why the extra winch?
It was just an odd picture that we couldn't make any sense of!