Elizebeth Smith Friedman was a cryptanalyst and author, and a pioneer in U.S. cryptography. She has been dubbed "America's first female cryptanalyst". Although she is often referred to as the wife of William F. Friedman, a notable cryptographer credited with numerous contributions to cryptology, she enjoyed many successes in her own right, and it was Elizebeth who first introduced her husband to the field. Williams Friedman, Codes Book, Broader Effort, Friedman Introducing, Bring Women, Woman, Codebreak Williams, Husband, Elizebeth Friedman
Lina Cavalieri (1874 - 1944) was an Italian opera singer known as the "world's most beautiful woman." Orphaned at the age of 15, she went to Paris where she took voice lessons, and made her opera debut in 1900. She married four times. After retiring from opera, Cavalieri ran a cosmetic salon in Paris, published a book, made motion pictures, and worked as a WWII volunteer nurse. She and her forth husband were killed during an Allied bombing raid in 1944.
Helen Richey was Amelia Earhart's copilot on one flight across the Atlantic. She became the first woman hired to be a pilot by a commercial airline in the US. She was the first woman licensed as an aviation instructor. She was the first woman to fly a scheduled mail flight. During WWII she commanded a group of women pilots for the British Air Transport Auxiliary, flying bombs between factories and airbases. She died by suicide at age 38