Disa M. Hynsjö was a Ph.D. candidate in economics at Yale University. She passed away in July 2021 because of complications from a rare, sudden, and brief illness. She was at work on a remarkable set of projects, including the distribution of family income; the effects of children and partners on the careers of women; the long-term effects of “redlining” of U.S. neighborhoods in the 1930s; and the effects of technical change on the demand for and return to skill. Hynsjö would have finished her Ph.D. in May 2022, and she had a very promising career ahead of her.