Hi Chris,

There is only one Tomlin in the pre War Air Force Lists:

Brian Stirling Tomlin
37486
Acting P/O 23/12/35
P/O 28/10/36
F/O 28/05/38
F/L 28/05/40

DFC Gazetted 17/05/40

I strongly suspect that this is your man.

No casualty record in the CWGC database.

Also a discussion on another board
http://www.rafcommands.com/cgi-bin/dcforum/dcboard.cgi?az=show_thread&om=6336&forum=DCForumID6&archive=yes

Regards
Ross