Michelle Legro has a great piece in The Guardian on the competition between the ladies Roosevelt: Alice and Eleanor.
Eleanor would be remembered for her politics, Alice for her tongue, and each were to the other “examples of how not to live”. But Hissing Cousins proves that being a Roosevelt, and a woman, is not a zero-sum game. Because the one thing Alice and Eleanor certainly got out of their enmity was an unwavering belief in their own selves. Both of them would outlive the men they married and die distinguished in their own right. It turns out that even among women, a little healthy competition is a good thing.