Never had one that old Jim, my first was a '39 prefect, born the same year as me.

Cable brakes, transverse springs and no heater. My second, a '50 Hillman minx has hydraulic brakes and independent front suspension, like a rolls after the Ford.
I remember repairing the Ford gearbox at the side of the road, well at least getting it to drive again. The thrust washer behind 2nd gear used to break for a pastime, just leaving first and top, if you were foolish enough to put it in reverse 2nd gear slid along the shaft and dropped off the end, jamming it in reverse. In those days the floor came out, having removed it I took the gearbox cover off, or at least as far as the selector forks would allow, got a screwdriver in either side of the main shaft, lifted up 2nd gear and slid it back on the shaft. 10 mph max in first and by the time you tried to get into 3rd it had slowed down to much, so had to go back to first again - ok downhill though.
I fitted side windows to two Morris Minor vans and an A50 van for the same reason as your dad's A35.
Peter