Amy Cooke Mitchell, 92, active in numerous patriotic organizations, died Monday at Goodwin House in Alexandria.

A resident of this area since shortly after the end of World War II, she was the widow of Reginald T. (Rex) Mitchell, a retired employee of the Yale Lock Co.

They had lived in Chevy Chase until his death 15 years ago. Mrs. Mitchell then lived in Arlington, until moving into Goodwin House a year ago.

Born in Stamford, Conn., she and her husband had lived there for many years. They had made their home in Washington on two earlier occasions, from 1910 to 1917, and again from 1925 to 1932.

Mrs. Mitchell was a member of the Huguenot Society of Virginia, the Daughters of the American Revolution, the Daughters of the Founders and Patriots of America, the Daughters of the American Colonists, the Colonial Dames of the 17th Century, the National Genealogical Society, the National Trust for Historic Preservation, the National Society of the Sons and Daughters of the Pilgrims, the National Cathedral Association of the Washington Cathedral and the Eastern Star.

She is survived by two sons, Dr. Reginald H. Mitchell, of Rockville, and Dr. Donald W. Mitchell, of Arlington; a daughter, Dorothy Fleckinstein, of Concord, Calif., five grandchildren and seven great-grandchildren.