He also has a webpage on the topic:
I just ignored the sign-in pop-up by clicking on the X.
Check out the various topics. He has the subject of knick-knacks, graphics and propaganda covered.
Florey is a retired English professor at Southern Connecticut State University and a long time collector of Suffrage ephemera. He also keeps a bibliography of other books on the topic on the right.
And here's a blog post with more books on Women's Suffrage: