Some UK-related books (suffrage movement)
A few suggestions on UK women's suffrage (I don't think I've seen any of these on AMG when I've been browsing):
Non-fiction
Emily Davidson: The Girl Who Gave Her Life For Her Cause (http://www.amazon.co.uk/Emily-Davison-Girl-Cause-was/dp/1904095666) age range 9-12?
Emmeline Pankhurst (http://www.amazon.co.uk/Emmeline-Pankhurst-Famous-People-Lives/dp/0749636750) age range 6-12?
Sylvia Pankhurst (http://www.amazon.co.uk/Sylvia-Pankhurst-Classroom-Shirley-Harrison/dp/095539631X) age range 13+ (Sylvia's influence runs a lot further than just the suffrage movement, though)
Fiction
Suffragette: My Story (http://www.amazon.co.uk/Suffragette-My-Story-Carol-Drinkwater/dp/1407120727) age range 9-12?
A Question of Courage (http://www.amazon.co.uk/Question-Courage-Marjorie-Darke/dp/1903015219) age range 9-12?
Polly's March (http://www.amazon.co.uk/Pollys-March-Linda-Newbery/dp/0746060319) age range 9-12?