The NFL's Newest Female Referees - Girl Tribe Magazine
Official (gridiron football) - Wikipedia
XFL: Women will be part of officiating crews in new football league
Referee Magazine - May 2021 (Preview) by Referee Magazine - Issuu
The story behind the XFL's female officials
Sarah Thomas makes more NFL history as first female on-field official in playoff game - The Washington Post
O'Leary: A year after historic game, women refs look to the future
Pro Football Glass Ceiling Broken
The Game-Changing Women of the N.F.L. - The New York Times