Yes - that Norman Mcleod. I was seconded to Radiophonic Workshop to compile, edit and sort out the material for a large number of the episodes. Initially, we were going to produce it in stereo, and all the incidental material was recorded for this. The opening of the programmes was indeed an excerpt from "Job" by Vaughan Williams, with then R3 announcer Cormac Rigby. David Cain and I mixed the first 5 full programmes by running 3 Philips 1/4" machines in sync. Each programme had to be completed in one or two passes, since it was virtually impossible to re-sync the machines half way through.
On my first day in RW I was presented with over 1000 5" reels of tape from Charles Parker, who spent his time driving through Britain in a clapped out Land Rover gathering "The voices of the peoples of Britain". There were many occasions when he stopped in the middle of nowhere & ran into a field with Uher under arm, stopped someone in the middle of ploughing, and got them to read - if they could - or repeat after him, lines of the script.
It all became worthwhile and satisfying when the first programme fell together some 5 months after I started.
Enough info for now.
Of the names - David Cain has retired to Poland. Michael Mason is no longer with us. Libby Maude is Libby Spurrier - now with Loftus Productions. Dick Mills, Lloyd Siverthorne et al will remember the series, and maybe Dick has copies of those he worked on.

At one stage the whole series was due to be released commercially by Argo, then part of Decca.
The original tapes may well still be in existence, and the final broadcast scripts certainly will. Access to BBC Archives would be useful.
Any further information would be useful.
Norman McLeod