Le Tirer
I can solve the mystery of the missing pictures, but it's not good news.
A few years ago, I posted pictures of the 'Mad Major' flying under various of the Thames bridges, and also scans of his Summons to attend Bow Street magistrates court and the subsequent order to pay a fine. (I can't now remember in which thread or forum I posted them.)
They were links to images posted on an American aviation website (not a bulletin board) by someone who, if I remember correctly, said he was a descendant/nephew. The links haven't worked for some time and, unfortunately, I didn't download copies to my hard disk.
Here's a picture of Major Draper at Tower Bridge. Not as impressive as the pictures of him flying under the other bridges where he was, of course, much lower.
It's also much smaller and a more distant shot than the others, but it's the best I can offer.
Tudor