Ann Cline, 87, a reporter and editor at the old Washington Star and one of the first women to work in its newsroom, died of congestive heart disease May 10 at Collingswood Nursing and Rehabilitation Center in Rockville. In 38 years at the Star, Ms. Cline rose from copy girl to deputy editor of the Washington Life section. She also worked for two years as a sportswriter during World War II.