Kathryn Vaughan Hill Rawls, 88, a former church organist and choirmaster who was featured on local musical radio broadcasts here in the 1920s and 1930s, died of cardiac arrest Sept. 24 at a nursing home in Fort Lauderdale, Fla.

Mrs. Rawls moved to Florida in 1974 to be near her son, retired Army Col. Robert M. Rawls of Pompano Beach, Fla.

She was an organist and choirmaster in Washington for 28 years, first at the the old Hamline Methodist Church and later at St. Luke's Methodist Church.

She was the widow of Walter Owen Rawls, a career Army officer, she also was an organist and choirmaster at churches elsewhere in this country, including, Hawaii, and in Panama, while accompanying her husband on military tours.

In the late 1920s and 1930s, she performed on weekly programs of organ and wedding music broadcast from the Kitt Music Co. here.

Mrs. Rawls was born in St. Louis. She graduated from Ward Seminary in Nashville, Tenn., did graduate work at the Ward Conservatory of Music, and held an associate degree in the American Guild of Organists.

She was a past-president of the Friday Morning Music Club of Washington, a past-chairman of its national auditions committee, and a former officer of the American Guild of Organists.

In addition to her son, survivors include two daughters, Jean Rawls Mays of Boulder, Colo., and Nancy Rawls Bowers of Corpus Christi, Tex., eight grandchildren and 13 great-great-grandchildren.