Susannah Hunnewell, publisher of The Paris Review and a prominent member of its literary circles for three decades, died on Saturday in Manhattan. She was 52.

Her husband, Antonio F. Weiss, said the cause was cancer.

Ms. Hunnewell joined the magazine as an editorial intern in the late-1980s, when it was run out of an 8-by-14-foot office in the Upper East Side brownstone of its co-founder and editor George Plimpton.

She remained associated with the magazine for the next 30 years, including a transformative and sometimes turbulent period after Mr. Plimpton’s death at 76 in 2003.

During that time the magazine redesigned its pages, broadened its scope and, in 2018, installed a woman as its top editor, after one of Mr. Plimpton’s male successors resigned amid accusations of sexual misconduct toward female employees and writers.