Who was the prominent social reformer known for her advocacy in women's rights, temperance, and abolitionism, and helped form the National Woman Suffrage Association?

Susan B. Anthony was a significant figure in the social reform movements of the 19th century, particularly in women's rights, temperance, and abolitionism. She is most well-known for her tireless efforts to secure voting rights for women, which were part of a broader struggle for social equality. Anthony played a central role in founding the National Woman Suffrage Association in 1869 alongside Elizabeth Cady Stanton. This organization was critical in advocating for women's suffrage and mobilizing activists across the country.

Anthony's contributions were not limited to voting rights; she was also deeply involved in temperance efforts, aiming to reduce alcohol consumption which was seen as a social ill affecting families and communities. Furthermore, her abolitionist activities demonstrated her commitment to ending slavery and promoting civil rights for all, reflecting her belief in equality.

Her multifaceted activism and leadership in the formation of key organizations underscore her importance in the wider movements for social change during her time. This context highlights why she is recognized as a prominent social reformer associated with this specific set of issues. The other individuals listed made significant contributions in their respective areas, but none are as closely tied to the formation of the National Woman Suffrage Association as Susan B. Anthony.