I found this amazing pic of “Husband Libber” Harry Britton posted to the Blue Pill subreddit; it was taken in 1972 by the father of Blue Piller smileybird.
According to Cape Girardeau History and Photos, which has another pic of him,
New York Magazine wrote that he was a fixture who had been supporting himself wearing placards, carrying signs and selling his leaflets for 25 cents each for several years. “Harry makes only $2,000 a year [roughly $12,000 today –DF]. He’s not in this for the money, though; he says his only goal is reconciliation with his wife, from whom he is, not surprisingly, separated.”
Another account said he was the “president (and probably sole member) of the National Association of Dissatisfied Husbands subsisting on sales of publications extolling ‘Husband Lib.(‘It’s not men’s lib,it’s Husband Lib. The Bachelors are not oppressed yet’).”
Here’s that pic, and a couple of others; thanks to SquashedBananas in the Blue Pill for tracking all this down. (And thanks to the reader who emailed me about all this.)