Both of Carly Simon’s sisters, Broadway composer Lucy Simon and opera singer Joanna Simon, died this week
Carly Simon in Martha's Vineyard, Massachusetts, 1981.. - Lynn Goldsmith/Zuma Press/TNS

NEW YORK — Singer-songwriter Carly Simon is mourning the loss of her two sisters this week. Broadway composer Lucy Simon died of breast cancer Thursday at age 82, and former opera singer Joanna Simon, 84, lost her battle with thyroid cancer the day before. Born into wealth as the children of Simon & Schuster publisher Richard Simon in New York City during the 1940s, all three siblings were successful in their professional music pursuits. Lucy Simon launched her music career in the 1960s when she performed alongside Carly in Greenwich Village and Provincetown, Massachusetts. Under the moniker S...