O’Hearn of Medford in Braintree April 3.Madelina “Lena” (Greco) age 91. Beloved wife of the late Timothy F. O’Hearn. Devoted mother of Mitchell V. DeMare and his wife Ann Marie of Abington. Loving sister of Rose Violette of S. Boston, Joseph Greco of FL, Anthony Greco of E. Boston and Amadeo Greco of Waltham. Also survived by 5 grandchildren, 3 great grandchildren and many nieces and nephews and great nieces and nephews. Funeral from the C. C. Shepherd Funeral Home 134 Pleasant St. (Columbian Sq.) S. Weymouth on Wednesday April 7 at 9 A.M. Funeral Mass at the St. Francis Xavier Church 261 Pleasant St. S. Weymouth at 10 A.M. Visiting Hours Tuesday 2to4 and 7to9 P.M. Interment in St. Michael’s Cemetery, Boston. www.ccshepherd.com.