Maia Chaka: First Black woman to serve as full-time referee in NFL
Who is Sarah Thomas? NFL referee named as first-ever woman Down
NFL names first female official, Houston Style Magazine
NFL to hire first woman referee, Sarah Thomas – New York Daily News
NFL referee Sarah Thomas doesn't have time for your nonsense
Referee Sarah Thomas Will Make Super Bowl History - But She's Part
Sarah Thomas making history as NFL's first female Super Bowl
NFL to hire first woman referee, Sarah Thomas – New York Daily News
Slowly but Surely, the Times Are Changing for Women in the NFL
Sarah Thomas to become first female to officiate at Super Bowl
How Sarah Thomas became the NFL's first full-time female referee