Hello,
Here is the info I used for POW Cassidy.
http://aad.archives.gov/aad/record-d...pg=1&rid=51766
Looks like Sergeant to me.
From something at the back of my memory says that all flying crew of lower rank were automatically raised to Sergeant, but I could be wrong, perhaps it was a promotion whilst a POW.
As for the crew were there 10 crewmembers or just eight as it would seem ?
If ten then two more names are wanted.
Alex