As a young woman, she and her mother marched together in Boston for women's suffrage, and late in life she was featured in Ken Burns' documentary on the subject, Not for Ourselves Alone.

Dyk also worked as a researcher at State University of New York, publishing findings that challenged contemporary notions that motherhood necessarily brought women happiness.

[3] In 1950, she co-wrote Anxiety in Pregnancy and Childbirth (published by Paul B. Hoeber, an imprint of Harper & Bros.), reporting research findings that, contrary to the prevailing view that bearing children necessarily brought women happiness, pregnancy could exacerbate the difficulties of women who had mental illnesses or were “maladjusted”.

[6] Dyk also co-wrote Psychological Differentiation (Wiley, 1962), and Left Handed (Columbia University Press, 1980), an anthropological study of Navajo Indians continuing work begun by her husband.

[3] Dyk appeared in Not For Ourselves Alone: The Story of Elizabeth Cady Stanton & Susan B. Anthony in the show's first episode.