NA is definitely a Manchester registration, and the ones from there with the four numbers in front of the two letters were first issued in Dec 1959 (according to my copy of "A to Z of Car Numbers"...my wife says I'm sad.).

The clothes and general appearance of the photos certainly look like the early 60's.

Nice find....wonder if the car could be still around. The Ford Anglia was considered rather stylish, with its recessed rear window.