Here's the post if anyone has trouble finding it:

"Both Dennis Mackail and E. V. Lucas mention that Michael joined the London Scottish Regiment (a territorial unit) as a private in March or April 1921.  The London Scottish archivist has just informed me that Michael attended a regimental camp on Wimbledon Common "a few days" before he died.
This suggests that Michael was not taking his degree studies very seriously, and that he might have been  thinking of a career in the army, like his uncle Guy, after he had finished at Oxford.  JMB's complete silence on this matter may be a sign of his disapproval."

"From The London Scottish Regimental Gazette, June 1921, p.78:
_______________________________________________________________________
Deaths

We regret to have  to announce the death of Private M. L. Davies of the 14th Batt. London Defence Corps.  Mr. Davies was an adopted son of Sir James Barrie, and was an undergraduate of Christ Church, Oxford.  He with Mr. R. E. V. Buxton were unfortunately drowned near Sandford bathing pool on the Thames near Oxford.  He was only 21 years of age and left Wimbledon Camp a few days before the sad event to attend an examination."

Post is by the member with the username Nicholas.

I don't want to get anyone's hopes up too much, but it is worth asking your opinions on whether this video features Michael walking past the camera at the beginning. I've watched it many times...it looks like the nose is too big to be him...but the light seems to make everyone's noses look a little big. It doesn't help that he contorts his face either...but it is worth posting I think. He also has distinctive 'folds' or creases in his skin coming down on either side from his nostrils to his mouth...you can see these clearly in the photo of him in Andrew Birkin's book when he is holding something between thumb and forefinger while sitting in a boat, at Eilean Shona I think.

I read an article on here that Michael attended a military camp for the Scottish brigade at Wimbledon, and left the camp to attend an examination at Oxford, drowning a few days later. It seems to be a well-timed search, some videos of that camp have recently been uploaded to Getty images.

Even if it is unlikely to be him, it is still fascinating that Michael would have seen those camps, perhaps spoken with some of the solders in the videos...here's the link...
 
https://www.gettyimages.co.nz/detail/video/soldiers-of-the-london-scottish-reserve-regiment-stock-video-footage/mr_00057893

It would be so wonderful if it was him! Eager to hear your opinions, and clarification as to whether the post I read on here was accurate.