Arline (Willar) Davis, of Belmont, formerly of Worcester, died Nov. 16. She was the daughter of Henry and Nellie Willar of Worcester. She was the widow of Leo Davis. She was a graduate of the University of Chicago, the Simmons Library School and was a librarian at Northeastern University for many years. She had been an artist, avid swimmer, skier, tennis player, and enjoyed sailing.She is survived by two sisters, her twin Phyllis Heilbronner and Kossiah Orloff; and several nieces and nephews, Jeff Willar (Sherri), Warren Heilbronner (Joan), and Robert Heilbronner (Sarah) and Pietor (Graham). She was predeceased by a brother, Abraham Willar; and a sister, Sarah Siff. Memorial contributions may be made to the charity of the donor’s choice.