UK fantasy parliamentary boundaries - population-based apportionment

[stepney]

I think Ullswater is the only ward in Cumbria which crosses a Cumberland/Westmorland/Lancashire boundary.

[stepney]

For the apportionment by county, are we looking at the immediate pre-1974 counties (so, for example - including Huntingdon & Peterborough; Cambridgeshire & Isle of Ely; Dudley transferred to Staffordshire; Smethwick transferred to Worcestershire; Greater London being in existence, etc) or boundaries further back? And within these 'new' old counties, are we looking at administrative boundaries within them as they are now, or as they might have existed at some previous date?

[stepney]

It's missing a trick not to be able to move back to there being an LCC area, a Middlesex County Council, etc. Otherwise it's somewhat formulaic in the SE area. If we take a date like 1960, most of the anomalies haven't been ironed out and it becomes more fun.

[stepney]

I think this is a 1960 county map:



Not much change from 1970, except the four main points highlighted above: creation of Greater London, mucking about in what is now Cambridgeshire, creation of Teesside CB, swaps in the Black Country.

Either way, we haven't clarified whether this exercise goes on to use the current (2013) districts and wards within each old-time county, or the urban/rural districts existing at the time. If the latter, it'll be a nightmare.