61-Year-Old Arlington Man Missing

John J. Rosenberger, 61, has been missing from his Arlington residence since Monday, Dec. 9, according to a Friday evening release from police.

Arlington police are asking for the public’s help in locating him. All information or questions regarding Rosenberger should be directed to police at 781-643-1212.

Rosenberger is about 6-foot-4 and 175 pounds, according to police. He is a white male with a thin build, blue eyes and gray hair.

He was last seen wearing a blue coat, ski cap and a backpack, and he usually walks with a stick. He often attends different readings and shows at the Harvard Book Store, Cambridge Public Library and Boston Public Library, police said.