Question for British (and frugal) friends

From a Peter Morwood Tumblr post, comparing British and American WWII food rationing.

(transcript of picture)
The British adult ration for a week in 1951, after the war, was:
4 oz. bacon or ham
2 oz. butter
2-8 oz. cheese
4 oz. margarine
2-4 oz. "cooking fat" (lard? suet?)
2-3 pints milk
8 oz sugar
1 lb. preserves spread over (har!) two months
2 oz. tea
1 egg if available
3 oz. sweets

The Sunday roast is impossible at this ration, which would have been a severe hardship to spread over a week. Meatless is easily doable in 2010, but I don't know how I'd cook with that little fat. I also wonder what the bulk of the diet would have been. Potatoes? Bread? (this is postwar, when flour/bread was no longer rationed.) Were any cooking oils available?

I'd also kill for a hambone, or neck bone, or something to flavor beans and so on.