Congresswoman for Wyoming's At-Large Congressional District
Energy Security and Healthy Forests for All
Lummis is one of four children born in Cheyenne to Doran Lummis and the former Enid Bennett (1928–2013), a native of Denver, Colorado, who was reared in Cheyenne and was highly active in Cheyenne Frontier Days and the Republican Party. In a statement upon her mother's death, Lummis said, "I carry with me so many lessons my mother taught me; chief among them is the quiet grit she displayed in the face of pain and adversity."
After high school, Lummis enrolled in the University of Wyoming in Laramie, obtaining two Bachelor of Science degrees in animal science in 1976 and in biology in 1978. While she was a legislator, she received her Juris Doctor degree from the University of Wyoming in 1985 and also clerked for the Wyoming Supreme Court.