Sedgewick,my father also flew in Lancasters
but was thankfully spared the horrors of Europe,he was stationed in Singapore and was part of the then fledgling Air Sea Rescue Service,he also crewed in disarmed MTB's
which were used as fast response rescue boats.
My wife has done some research and we've discovered some newspaper coverage of an amazing rescue he was involving a Short Stirling flying boat that had ditched back in the day.
I'm immensely proud.
Sadly much of my Fathers personal effects have been lost over the years,I just wish i'd paid more attention when he was still alive.
As you say 'we Brits' are very proud of our aviation history because as you're no doubt aware the RAF and our allies like your wifes father played such an important part in our defence during WW2.
I hope your wishes regarding your late wifes ashes are granted and as you mention you can join her when your time comes,given our close relationship with Canada i'd be very surprised if you were prevented.