- Daughter of Moe Howard and Helen Howard.
- Niece of Curly Howard and Shemp Howard.
- Granddaughter of Sol Horwitz.
- At the time of her death in 2021 was one of the last living actors to appear onscreen with the original Three Stooges (Larry, Moe, Curly).
- On June 26, 1945 Moe Howard had his daughter Joan's name officially changed from Joan Saly Horwitz to Joan Saly Howard.
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