Margaret Clark Gathman died on Dec. 8, 2014, at age 87, of Oyster Bay, formerly of Northport. Beloved wife of the late Edward. Loving mother of Edward (Christine), and Laurie Kowalsky (Keith). Cherished grandmother of Patrick, Kevin, Courtney, Sean, and Rachel. Also survived by loving relatives and friends. Visiting Oyster Bay Funeral Home, 261 South St., Oyster Bay, www.oysterbayfuneralhome.com. Funeral service held at Oyster Bay Funeral Home Chapel. Interment Calverton National Cemetery.