River is the son of Sharon's brother, Patrick, and his wife, Tasha. He was born in September 2020. Sharon announced his birth on Instagram by sharing a photo of the newborn. She also posted a cute pic of him back in January.
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As we've reported ... Stone's family has experienced a lot of tragedy lately due to COVID-19. Last year, Sharon tearfully revealed her grandmother and godmother both died in the pandemic. Her sister and sister's husband, Bruce, also battled the coronavirus, but thankfully survived.