It's probably a bit ambitious, but (building on earlier work) I'm aiming at the moment for a list of all British titled players (both the main and female titles), though (seing how many FMs there are) I will probably cut it short at the IM and WIM or WGM level.
What I currently have (data obtained on 18/09/2010) is a list of all current titled players in the FIDE rating list registered for ENG (England), SCO (Scotland), WAL (Wales) and IRL (Ireland). It is easy to get this from the FIDE rating website 'advanced search' option, but the problem is filling in the history for those no longer on the FIDE website (either due to no longer being alive or having been active before the ratings began). Needing to fill in this history is why I'm posting in the 'chess history' section of these forums.
Anyway, from a list of 2101 players registered for ENG, SCO, WAL and IRL, you can get the following stats.
a) Current highest titles (301 titled players):
43 GMs (including one WGM)
74 IMs (including four WGMs)
120 FMs (all male)
25 CMs (all male)
b) Current highest female titles (44 titled players):
Currently 5 British women hold a title 'higher' than the female title they hold. Four WGMs also hold the IM title (all from ENG), and one WGM holds the GM title (from SCO).
c) Of those 2101 players and 301 titled players, the breakdown across ENG, SCO, WAL, IRL is as follows (by highest title held):
All players: ENG (1515), SCO (244), WAL (160), IRL (182).
Titled players: ENG (230), SCO (32), WAL (17), IRL (22).
d) Breaking down the titles still further by federation (still by highest title held):
ENG: 37 GMs, 56 IMs, 86 FMs, 23 CMs, 3 WGMs, 10 WIMs, 11 WFMs, 4 WCMs
SCO: 5 GMs, 8 IMs, 14 FMs, 1 CM, 4 WFMs
IRL: 1 GM, 6 IMs, 12 FMs, 2 WFMs, and 1 WCM
WAL: 4 IMs, 8 FMs, 1 CM, 4 WFMs
It would be possible to graph the distribution by birth year as well (though this is missing for 10 of the 301 titled players) and by how many of the players are inactive or active. Oh, and I just spotted a duplicate entry for Wilson, Peter J B (the same grading code for two entries, a candidate master from ENG), so some of the figures need reducing by one.
Some of the names here are not on the previous lists produced, so I will go and add the names in those threads.