Daughter of actress Nan Kelly. Older sister of actor Jack Kelly.
Died the day after her third husband, Warren Caro, died. They had been divorced since 1968.
Ex-daughter-in-law of Fred Jackman.
Film Daily, Page 7, June 5, 1929 reports: "Little Nancy Kelly...has worked in 23 pics during the past two years; Nancy must be the most photographed child in America due to commercial posing."
Her only child, Kelly Lurie Caro, was born eleven weeks prematurely in January, 1957, weighing only 2 lbs 1.5 oz.
Won Broadway's 1955 Tony Award as Best Actress (Dramatic) for "The Bad Seed," a role she reprised in her Oscar-nominated performance in the film version, The Bad Seed (1956).