Born as Athalie Anita Irvine on May 29, 1933 https://www.legacy.com/obituaries/latimes/obituary.aspx?n=joan-irvine-smith&pid=194772729 , the great-granddaughter of James Irvine (an immigrant who assembled about 120000 acres of what is now Orange County to form the Irvine Ranch), Joan Irvine Smith was well known for her philanthropy.