Wrenn Biller Gilkeson, 90, who taught in Northern Virginia public schools for 34 years before retiring in 1968, died Jan. 6 at her home in Leesburg. She had influenza and Parkinson's disease.

She came to Northern Virginia and began her teaching career here in 1934 at Franconia Elementary School. In 1941, she transferred to Great Falls Elementary School, where she taught until 1960. For the next eight years, she was a roving reading specialist who taught students in primary through secondary grades in the McLean and Herndon areas.

Mrs. Gilkeson, who was born in Broadway, Va., graduated from the State Teachers College in Harrisonburg, Va., and taught in the Rockingham County public schools before moving here. She received a bachelor's degree from American University in 1958 and did graduate work in reading education at George Washington University.

In 1965, she was part of a delegation of U.S. teachers that went to Sierra Leone to advise educators there.

Mrs. Gilkeson, who lived in Great Falls before moving to Leesburg in 1976, had done volunteer work for the Great Falls and Leesburg United Methodist churches. She also had done volunteer work for the Loudoun Hospital Center's long-term health care unit.

Survivors include her husband of 61 years, Guy Merriwether Gilkeson, and a daughter, Carolyn Peper, both of Leesburg; a son, Roger, of Washington; a sister; three grandchildren; and a great-granddaughter.