Waltham - Mrs. Doris M. Robbie (Burhans) Robertson, of Waltham, died Wednesday, April 4, 2007 in her home surrounded by her family. She was 86. Born in South Windsor, Connecticut, a daughter of the late Howard E. and Edith L. (Nevers) Burhans, she was a registered nurse at Waltham Hospital for over thirty years. Doris was a 1941 graduate of the Waltham Hospital School of Nursing. She was the wife of the late James A. Robertson and sister of the late Edwin Burhans. Doris leaves her children, Bonnie J. Julie and her husband, James, of Swampscott, Beverly A. OBrien of Marcelona, Michigan, Daniel J. Robertson and his wife, Janet, Barbara L. Arsenault and her husband, Thomas, all of Waltham, and Dwight F. Bucky Robertson of Framingham, twelve grandchildren and fifteen great-grandchildren. Services and burial will be private. Memorial donations may be made to Partners Hospice, 281 Winter Street, Suite 200, Waltham, MA 02451.