Ina Duvall Singleton Stovall, 90, a freelance writer who had published articles, poetry and short stories in newspapers and magazines, died Nov. 30 at Sibley Memorial Hospital. She had a heart ailment.

As recently as 1976, she had published a story in The Washington Post about her experiences as a Red Cross volunteer in Washington during the flu epidemic in World War I. She also had written for The Saturday Evening Post, The Ladies Home Journal and The Wall Street Journal.

Mrs. Stovall was born in Washington and graduated from old Western High School. She attended George Washington University and worked as a secretary for the Treasury Department before World War I and in the old D.C. Supreme Court during the war.

In 1923, she married Bates Mitchell Stovall, an attorney. They lived in Jacksonville, Fla., from 1930 to 1945, when they returned here. Mr. Stovall, who worked for the Veterans Administration, died in 1959.

Mrs. Stovall was a member of the Bethesda Presbyterian Church. She made her home for a number of years with a daughter, Anne S. Woodhams, in Bethesda, and for the last two years had lived at the Presbyterian Home in Washington.

In addition to Mrs. Woodhams, she is survived by another daughter, Ina Ruth Jerome, of St. Paul, Minn.; a son, Mitchell S., of Lakeland, Fla., 16 grandchildren, four stepgrandchildren and five great-grandchildren.

The family suggests that expressions of sympathy be in the form of contributions to a charity of one's choice.