Seeking information especially from Canada based Veterans Assoc's on two brothers originally From Hamilton, Ontario as part of an ongoing research project; Flying Officers B.A. David / R.M. David, both served on Lanc's, both shot down and survived as POW's to return home safely. F/O B.A. David was R/G on Lancaster LM658, the aircraft to which my ongoing research relates. I would ultimately like to make contact with any descendants/family members who would be interested in my project, any pointers appreciated!