Coogan, Margaret A. (Hall) of Waltham, formerly of Cambridge, April 22, 2016. Sister of Edward J. Hall and his wife Viola of Lexington, William R. Hall and his wife Aloyse of Vermont, and the late Frederick Hall and his surviving wife Elizabeth Hall of Florida. Peg is also survived by many nieces and nephews. A Memorial Service will be held Monday May 9 at the Douglass Funeral Home, 51 Worthen Rd. Lexington at 11am. Relatives and friends are kindly invited to attend. Interment to follow at the North Cambridge Catholic Cemetery.