Sheridan, Jacqueline R. (Mercier) of Somerville, April 9, 2018 at age 77 after a long illness. Devoted wife of Thomas J. Sheridan. Beloved sister of William, James and the late Richard and Thomas Mercier. Also survived by nieces, nephews and many other loving relatives and friends. A graveside service will be held at the Cambridge Cemetery, 76 Coolidge Avenue in Cambridge on Thursday, April 12, 2018 at 11:00 am. Please meet at the main gate at 10:45 am. In lieu of flowers donations in her memory may be made to Alzheimer’s Association, 309 Waverley Oaks Road, Waltham, MA 02452. Arrangements by Rogers & Hutchins Funeral Homes Arlington & Cambridge.