Library to mark 50 years of service Volunteers are why the Rossmoor Library has been so successful, and it’s time to celebrate the impact they’ve made over a half century. A birthday party celebrating the residents-run library’s 50 years is this Thursday, Sept. 10 from 2 to 5 p.m. at the library at Gateway. There will be a birthday cake, non-alcoholic “bubbly” and a chance to share