She was born Evelyn Gentry and grew up with 8 brothers and sisters in the Colorado Plains. When she was 13, her family moved to Sterling, Colorado. In 1924 she became a student at the University of Colorado while working as a maid for a rich Boulder family. Her mentor, Dr Karl Munzinger, guided her in her challenge of the then prevalent psychological theory of behaviourism. He invited her to write her own case history. After receiving her Masters degree, she became one of 11 women involved in the PhD program in psychology at Johns Hopkins University, Baltimore, Maryland, having been refused referral to Yale. She was awarded her PhD in 1932.