Bloody Hell 42 operational sorties! The bravery of these Men leaves me speechless at times.
I'm guessing the abbreviations NT and DL equate to Night Time and Day Light?
Going off on another slight tangent I was over in the BBMF Hangar a couple of weeks back mooching around the Lancaster, as you do. I watched an old Gentleman being pushed forward toward the aircraft by what I assume was his Grandaughter, her Hubby and one of the BBMF Pilots. As they approached the rear of the Lancaster the chap in the wheelchair, who must have been in his ninetees by the way, seem to discover the fountain of youth as he got up and scrambled up the steps and into the fuselage. In no time at all he appeared in the cockpit and then in the nose of the Lanc. Anyway to cut to the chase I got chatting to the Pilot who told me that the chap now grinning from ear to ear had served as a Bomb Aimer on Lancasters with RCAF in 1943/44. Strange thing was all of sudden, even with the Hangar doors closed, the wind seemed to pick up and it got very dusty in there as I watched him climb out.