COBLE, Joan (Walker) Of Lexington, Aug. 4, 2011. Wife of the late Robert L. Coble. Mother of David Coble and his wife Monette of Townsend, Eric Coble and his wife Gail of Marion, Stefan Coble and his wife Elisabeth of Lexington, and the late Catherine Coble and Janet Coble. Sister of Ann Costello of Mary Point, West Virginia. Grandmother of Andrew, Derek, Matthew, Trevor, Kristifer, Robin, Joshua, Alisha, Leia, Mikayla, Dante, Jaclyn, and Jessica. Joan is also survived by many nieces and nephews and by a dear friend, Marie McIntyre. Registered Nurse at Boston Children's Hospital. Relatives and friends are kindly invited to visit the family at Joan's home on Saturday Aug. 20 from 2 p.m. to 4 p.m. In lieu of flowers, donations in her memory may be made to Children's Hospital, 300 Longwood Ave., Boston, MA 02115.