A really big change is the 11th. Dr Mac's weird bunkers have been improved. However, the size of the green has been reduced as it used to spread to the bunkers. The green looks to have been raised on the right, probably to mitigate green flooding. It looked cool, but jeepers.
As on the 14th, it would appear from the old photos that the putting surface on 11 used to extend down the bank at the front of the green and take in the fairway level area short of the current green.
I do however, have my suspicions...
The only evidence we have of this is the sight in the old photos of golfers appearing to be putting on ground that is no longer part of the green.
Was this though, an accurate depiction of the extent of the putting surfaces at the time? Or a conceit of the photographer anxious for the most pleasing shot?
The man involved, one Joseph Board, was Buxton's leading professional professional photographer in the first half of the 20th century. He will have been well versed in orchestrating extras in his shots to stand in the most advantageous positions to elicit the best photograph. Could the presence of golfers "putting" at the front of the the 11th and 14th greens in these pics be a complete red herring? Could they not have been placed there by Joseph Board simply to help fulfil his artistic vision?
There is certainly little to suggest from looking at the grass in these shots that the greens did indeed extend down to the lower levels.
A cool piece on Joseph Board from 1934...https://www.wondersofthepeak.org.uk/facts/1444/