Lake, Rosemarie J. (Troisi) of Arlington passed away on June 22nd. Beloved wife of 57 years to the late Robert F. Lake. Loving mother of Robert Jr., and Rachel Lake of Woburn, MA, Gregory and Nancy Lake of Burlington, MA, and Kristen and Ronald Jackson of Cambridge, MA. Survived by her seven grandchildren and two great-grandchildren. Sister of Dyan Troisi of Arlington and the late Richard Lovering and Joseph Troisi. Relatives and friends are invited to visit in the DeVito Funeral Home 1145 Mass. Ave., ARLINGTON on Thursday 4-7 pm and to a funeral home service at 7 pm. In lieu of flowers donations are requested to St. Jude Children's Hospital, 501 St Jude Place Memphis, TN 38105 or stjude.org/donate.