Why had I not heard about this???!!! Statue of suffragist Elizabeth Wolstenholme Elmy. She was a somewhat marginalised figure in the late C19th movement on account of being a freethinker, involved with the Malthusians, and living in a free union with Ben Elmy, her partner, until prevailed upon to regularise their match when she fell pregnant (and even then that did not satisfy the More Respectable tendency).
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Two earlier women out there on the radical secularist fringes, and mixed up with one of those what I think of the Bad News Boys of Free Love, in this instance Richard Carlile - Wife no 1, Jane Carlile, who kept his paper The Republican going while he was in prison and was imprisoned herself. At some point they separated, and Carlile formed a free union or common-law marriage with Eliza Sharples, herself a writer and lecturer on freethought and allied subjects.
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Earlier yet, and currently being celebrated around her birthplace, Aphra Behn: they are raising money to erect a statue.
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And circling back to more modern days, I've certainly, back when, read some of Kay Dick's works. I might even have read, decades ago, They. Of interest.