Elena Kagan, officially took her seat on the SCOTUS on 10/01/2010.
A year ago, I was watching CSPAN coverage of the guests arriving and being introduced at a White House state dinner for France. Sure enough associate justice Kagan entered the room with her female date.
3. I may be mistaken, but I do not believe Sotomayor has performed any same-sex wedding ceremonies.
9/22/2014 CBS - Supreme Court justice (Kagan) performs her first same-sex wedding
Whoa! Guess she decided not to announce that.