Teresa O. Schaffer, 97 of Lexington Park, MD died March 2, 2014 at home.

Born March 27, 1916 in Washington D.C., she was the daughter of the late John A. and Mary Catherine Huff O'Brien.

Teresa married her late husband, Fred Steven Schaffer on August 24, 1940. She graduated from the Notre Dame Academy High School and attended the Notre Dame Business School from 1934 to 1935. Teresa worked for Federal and Private Business' in Washington, D.C. until 1942. She worked for the Department of the Navy at Patuxent River, MD from 1948 until retirement in 1973. Teresa then went on to work for the MD State Assessment Office, retiring after eight years.

Teresa is survived by her daughters, Margaret T. "Peggy" Foley, of Lexington Park, MD, Mary Ellen Billig, of Denver, CO; her son, Fred Steven Schaffer, of Charlotte Hall, MD; fifteen grandchildren; twenty eight great grandchildren; and sixteen great-great grandchildren. In addition to her parents and husband, she was preceded in death by a daughter, Dorothy Ann Cox; eight siblings, Edmond O'Brien, John E. O'Brien, William H. O'Brien, Thomas A. O'Brien, Mary C. Martinote, Elizabeth L. Rogers, Frances X. McKenna, M. Grace Fairfax; three great grandchildren, and a great-great grandchild.

Family will receive friends for Teresa's Life Celebration on Friday, March 7, 2014 from 11:00 to 11:45 a.m. at Immaculate Heart of Mary Catholic Church, 22375 Three Notch Road, Lexington Park, MD 20653, followed by a Mass of Christian Burial at 12:00 p.m. Interment will follow in Trinity Memorial Gardens, Waldorf, MD.

Memorial contributions may be made to Hospice of St. Mary's, P.O. Box 625, Leonardtown, MD or Immaculate Heart of Mary Catholic Church, 22375 Three Notch Road, Lexington Park, MD 20653.

Arrangements by the Brinsfield Funeral Home, P.A., Leonardtown, MD.