Susan Eller Barnes, 27, died Wednesday, October 7, 1981, at N.C. Baptist Hospital.  She had been ill for the past three months.  She was born May 10, 1954, in Forsyth County, a daughter of Reece J. and Mildred Beamon Eller.  She spent most of her life in Forsyth County, graduated from R.J. Reynolds High School in 1972, and had been employed for three years prior to her illness by Amp Inc.  Surviving are her mother and father, and one brother, Steven Reece Eller, all of Winston-Salem; her maternal grandmother, Mrs. Sudie Beamon also of Winston-Salem; and her paternal grandmother, Mrs. Bernice Eller of Purlear.  Funeral services were held at Vogler's Reynolda Road Chapel by James E. Beamon.  Susan lies in Forsyth Memorial Park.