"younger brother" is "mother's younger brother", in both the E.L. Doctrow novel and the musical.
Mother’s Younger Brother grew up in Ohio with his older sister (Mother), and his father, Grandfather. A shy, sensitive, and driftless youth, he hasn’t accomplished much or found his path in life by the turn of the century. Instead of marrying or making his own way in the world, he follows Mother, Father, and Grandfather to New York, where he settles into Mother and Father’s home and begins working at Father’s company.
Updated On: 4/19/26 at 11:30 PM