William David Keyser, of Massapequa, died on Nov. 24, 1999. He was a retirement advisor with NYSUT. Husband of Sarita. Father of Cindy and Robert Posner, Wendy and Tom Roemlein. Brother of John. Brother-in-law of Celia. Brother and brother-in-law of the late Alva and Ted Gluckman. Also survived by nieces, nephews and friends. Contributions can be made by to Cancer Care of Woodbury or Comprehensive Care Network, Parker Hospice. Robert A. Mardenborough, formerly of N. Massapequa, died on Nov. 25, 1999. Past Grand Knight Delaney Council #5983 K of C. Husband of Eileen. Father of Donna (Anthony) Oddo and the late Janet Mardenborough. Grandfather of Jenna Leigh and Anthony Robert Oddo. Arrangements were made by the James Funeral Home, Massapequa. Interment LI National Cemetery. Contributions can be made to the Virginia Living Museum, 524 J. Clyde Morris Blvd., Newport News, VA 23601. Elizabeth J. Langford, of Massapequa, died on Nov. 29, 1999. Mother of Richard L. (Eileen). Grandmother of Debbie Bilster and James Langford. Arrangements were made by the Charles G. Schmitt Funeral Home, Seaford. Memorial service at Grace Episcopal Church.