The great Catherine O’Hara - Delia Deetz, Lola Heatherton, Moira Rose, Sally, Cookie Fleck, and a procession of other indelible souls - has left us at seventy-one. She was born March 4, 1954, in Toronto, and died today in Los Angeles after a brief illness. She is survived by her husband, Bo Welch, and their sons, Matthew and Luke.