Two interesting facts about her:
#2 She Was for Abolition First
Susan B. Anthony was circulating anti-slavery petitions when she was 16 and 17 years old. She worked for a while as the New York state agent for the American Anti-Slavery Society. Like many other women abolitionists, she began to see that in the aristocracy of sex
woman finds a political master in her father, husband, brother, son ("History of Woman Suffrage"
. She first met Elizabeth Cady Stanton after Stanton had attended an anti-slavery meeting at Seneca Falls.
#8 Frederick Douglass Was a Lifelong Friend
Though they split over the issue of the priority of Black male suffrage in the 1860s a split which also split the feminist movement until 1890 Susan B. Anthony and Frederick Douglass were lifelong friends. They knew each other from early days in Rochester, where in the 1840s and 1850s, he was part of the anti-slavery circle that Susan and her family were part of. On the day Douglass died, he had sat next to Anthony on the platform of a womens rights meeting in Washington, D.C. During the split over the 15th Amendments granting of suffrage rights to Black males, Douglass tried to influence Anthony to support the ratification. Anthony, appalled that the Amendment would introduce the word male into the Constitution for the first time, disagreed.
More at link:
https://www.thoughtco.com/surprising-facts-about-susan-b-anthony-3528409