PL41036 with Sgt Herb Cossaboom on 21/8/44
PL41048 and 41049 with Beaufighter NE3455 EE-H on 21/8/44
PL30038 crew group including Lt SB Rossiter USAAF in front of Handcraft hut (plenty of those left on site) 10/6/44
PL41039 crew looking at aircraft damage 21//8/44
PL41054 Crew at Debrief 21/8/44
PL41044 Wing Commander Ken Gatward DSO, DFC following his ultimate op with 404 sqdn 21/8/44
Source for the photos is given as Public Archives of Canada
I think that the numerical sequence of identified Davidstow photos (as above) suggests they were taken in at least two groups during June and August 1944 and that other so far unidentified photos (mainly crew) can also be tied to 404's time there.