The list has some problems, however, to which another can be added.
Canadian Cynic has pointed out (in the comments here) that there is a duplication between Real Women of Canada (Rushfeldt's 35) and Real Women of BC (Rushfeldt's 34).
That these two groups are not truly independent is implied both by their name and by their shared graphic designer:
Thus of Rushfeldt's 42, 27 are left.
Update. Follow the link for an up-to-date listing of Rushfeldt's list of 42 organizations calling for the impeachment of Justice Beverley McLachlin.