I can't believe I forgot Karl Heinrich Ulrich's birthday! He turned 182 last Tuesday (August 28th). Tragically, he's been dead for 112 of those years.
Susan B. Anthony- February 15, 1820
John Addington Symonds- October 5, 1840
Edward Carpenter- August 29, 1844
Jane Addams- September 6, 1860
Magnus Hirschfeld- May 14, 1868
Radclyffe Hall- August 12, 1880
Addams and Anthony were feminists first and lesbians second, I know; but the thing about lesbian rights is that there have to be women's rights first.
Also I was going to include Havelock Ellis, who wrote Sexual Inversion with Symonds (Symond's name is not on it cause his family bought up all the copies of the first edition and burnt them), but I discovered just now he thought male homosexuals were fine and dandy, they're following their nature, but that lesbians were a product of feminism and they should suck it up and be good little wives. Bastard.