
“Judge Jackson received a J.D., cum laude, from Harvard Law School in 1996, where she served as a supervising editor of the Harvard Law Review. She received an A.B., magna cum laude, in Government from Harvard-Radcliffe College in 1992.”
“Judge Jackson also served as a law clerk to three federal judges: Associate Justice Stephen G. Breyer of the Supreme Court of the United States, Judge Bruce M. Selya of the U.S. Court of Appeals for the First Circuit, and Judge Patti B. Saris of the U.S. District Court for the District of Massachusetts.”
Background:
https://www.cadc.uscourts.gov/internet/home.nsf/content/VL+-+Judges+-+KBJ
More background:
https://www.scotusblog.com/2022/02/profile-of-a-potential-nominee-ketanji-brown-jackson/