Grace Fusco — mother of 11, grandmother of 27 — would sit in the same pew at church each Sunday, surrounded by nearly a dozen members of her sprawling Italian-American family. Sunday dinners drew an even larger crowd to her home in central New Jersey. Now, her close-knit clan is united anew by unspeakable grief: Mrs. Fusco, 73, died on Wednesday night after contracting the coronavirus — hours after her son died from the virus and five days after her daughter’s death, a relative said. Four other children who contracted coronavirus remain hospitalized, three of them in critical condition, the...