Hester, in America at least, there are probably as many people who've heard of Elizabeth Cady Stanton as have heard of Gandhi (and if it wasn't for the film with Ben Kingsley, even fewer would know :))
There's a statue of her, with other "mothers of feminism," Susan B Anthony and Lucretia Mott, in the crypt of the US Congress building.
Although my schooling was way back in the 70's, even then we learnt something about her in history and it's my understanding that feminists involved in the Seneca Falls conference and the Suffragettes have featured more prominently in school history classes in the US in the past couple decades.
But her criticism of the abolitionist movement, her overtly racist comments about the need to extend the vote to "women of good class and education" to counterbalance all the poor, illiterate black men who gained the vote after the Civil War, and her reluctance to admit African American women to the women's rights movement aren't usually mentioned.
Lucretia Mott, her contemporary but almost a generation older, while sharing Stanton's drive for female emancipation was highly critical of her for her racist and classist views. Mott and Sojourner Truth were perhaps some of the earliest examples of feminists with an intersectional perspective. Cool!
However, I have to take issue with your statement, "I also think that culturally we've made greater steps to examine and redress racism in our history whereas sexism is largely written off as 'just the way it was'."
This is the internetz, I don't know you or whether you are a woman of colour or not. But, I'll say from my own perspective, as someone who is visibly white, I don't believe it is for ME to pronounce whether there have been sufficient steps taken to "examine and redress racism in our history" our contemporary society, for that matter. I'm not affected by racism every day, so it's easy peasy for me to say that racism has largely been "sorted," but that would be me speaking from my privilege, not reality.
And, as an observer, I don't believe we've taken nearly enough steps to address institutionalised racism in our society, or sexism or other forms of oppression that maintain what I refer to as kyriarchal hegemony.
(Rummages in cupboard for tee shirt with "Lucretia Mott Rocks" on one side and "Sojourner Truth is my Idol" on the other.) :)