Eleanor L. Ecker, a former librarian at East Hampton High School, died on Saturday at Peconic Bay Medical Center in Riverhead with members of her family present. She was 90 and had had a brief illness.     

Through his company Harbor Electronic Publishing, James F. Monaco put out such titles of local interest as “Oh, That’s Another Story: Images and Tales of Sag Harbor,” “On Montauk” and “Sag Harbor Is,” both subtitled “A Literary Celebration,” and, most recently, “True Stories of Old Sag Harbor,” a collection of Sag Harbor Express columns by Jim Marquardt.