The chessnuts site has considerable data on the Yorkshire league, with the top division in full detail being here - http://www.chessnuts.org.uk/ny5/league. ... ionid=1232 - click on each team to see who has played so far this year, score etc. Useful for anyone hunting for players.
Going by team you have,
York A - 5 to White Rose, 1 to e2e4, 4/5 to Jorvik and one to DCA.
Sheffield A - 2 to Blackthorne, 3 to Spirit of Atticus, 1 to DCA, 1 to White Rose,
Bradford A (also B) - 2 to White Rose, 1 to 3C's, ~3 to DCA,
York B (and C/D) - 1 to WR, 3 to Jorvik, 2 to DCA,
Rose Forgrove A (and B) - 1 to Jorvik, 2 to DCA.
Calderdale A - 3 to Manchester, 1 to DCA.
Huddersfield - 1 to 3Cs, Bradford Central - 0,
Sheffield D - 5 ish to DCA.
Hull - 1 to DCA, 1 to NE2,
Harrogate/Alwoodley - 1 registered to WR,
Leeds CCC - ~4 to Leeds Uni old boys (basically the same group), 2 to WR 2.
DCA is more Bradford themed that this makes it look - they've got a handful of strong Bradford based players who've never played much in the Yorkshire league. The Calderdale players in the Manchester team are a minor Lancastrian border incursion
Anyhow, plenty of targets for anyone out hunting. The odd one I'm slightly surprised isn't playing actually.
Of course a lot of these people are probably happy with their existing ~8-11 weekends a year. The Forgrove players say are astonishingly commited and basically all play every match for them every year. Jorvik are player cycling, partially to let everyone play but also I suspect it isn't obvious if everyone would want to play all the weekends.