Chris,
Have you tried to browse the Spitfire production list?
http://www.airhistory.org.uk/spitfire/_prodn%20list.txt
It's a bit of a task to do (use "19S" as search function) and you may find (all?) Spitfires of 19 Squadron lost in 1941 on this side of the Channel.
See e.g. P7547, P7693, P7771, P7813 and no doubt several more.
Regards,
Leendert