Jill S. Tietjen, P.E. is an author, speaker, and electrical engineer. She is co-author of Her Story: A Timeline of the Women Who Changed America, which received the Daughters of the American Revolution History Award Medal. Jill has conducted research into historical women around the world for the past thirty years and speaks around the country about women’s contributions to history. One of the top historians on women across all fields of endeavor in the U.S., she works to bring more visibility to women through her continual nominations of historical and living women for national, state and local awards. Her nominees have been successfully inducted into the National Women’s Hall of Fame, the National Inventor’s Hall of Fame, and a number of state women’s halls of fame. Jill is often profiled and quoted in the media, and her articles have been printed in a wide variety of publications. She has received numerous awards and has been inducted into the Colorado Women’s Hall of Fame.