When I knew him, he was in his eighties so his ploughing days were over. He did have the obligatory 'old man's trousers' though. The type where the waistband fits just under the armpits.
I have never seen these sold anywhere. I imagine that once you reach 75, you receive a telegram telling you where to buy them.
For anyone curious enough, there are some scans of the prints in my gallery now.