Upper class women in 19th century America began advocating for women's rights and played a key role in social reform movements. They helped establish voluntary societies focused on issues like abolition and temperance. Notable leaders included Lucy Stone, Elizabeth Cady Stanton, and Susan B. Anthony. They fought for legal rights like control over wages and property upon marriage or divorce. Their activism helped pave the way for women's suffrage and higher education opportunities in the later 19th century.