Justice Ruth Bader Ginsburg first came into focus for me in 1993, when she was appointed to the U.S. Supreme Court. She was a trailblazer, like my mom, and they were friends. In 1956, Mom was Jinnie Lyn Davis. Jinnie and Ruthie were the only two women in their section that first year of law school. I never met Justice Ginsburg. But this summer, in a Slate interview about the 10 other women in her Harvard Law class, Justice Ginsburg singled out Jinnie as her closest classmate.