I think I can see why he decided to get into flying. There seemed to be cock-ups all round during his time as a soldier! A truly remarkable man. Anyone come across his memoirs? They would make fascinating reading particularly from the point of view of army co-op in the desert. RIP.
Another good well-written for Leith-Macgregor with extra detail: Lt-Col Robert Leith-MacGregor, MD, DFC: pilot and soldier | Times Online Obituary
Another well-written obit for Leith-Macgregor with additional detail: Lt-Col Robert Leith-MacGregor, MD, DFC: pilot and soldier | Times Online Obituary