Debra Martin, 71

    SEBASTIAN, FL -- Debra Lynn Martin, 71, Sebastian, FL, died December 12 at her home.    A graveside service will be held Wednesday, Dec. 22 at 1 p.m. at Pauley Jones Funeral Home in Harlan with burial in the Harlan Cemetery.    Martin is survived by sisters Tookie Smith of Sebastian and Marlyce Schraeder of Denison; and brothers Jeff (Loretta) Rademacker of Lincoln, NE and Jason Eckermann of Harlan.