Tracy Dunn, 69, a Washington merchant and retired employe of the Library of Congress who had lived here since 1945, died Jan. 14 near Berryville, Va., after a heart attack. He lived in Washington.

He was rabbit hunting when he collapsed in a field in Clark County.

Mr. Dunn had been a library assistant in the rare book division of the Library of Congress for nearly 35 years before retiring in 1972. Since then, he had operated a number of businesses, including a fish bait service, and worked as a real estate agent.

He was a native of Spring Hope, N.C., and a 1933 graduate of Tuskegee Institute. He served in the Army in the Mediterranean theater during World War II and was awarded the Purple Heart Medal.

Mr. Dunn was a past commander of American Legion Post No. 26, a charter member of Neighbors Inc., a community action organization, and a member of Holy Comforter Episcopal Church, all in Washington.

Survivors include his wife, Sadie B., and a daughter, Aida Wanda Dunn, both of Washington; six brothers, William L. of California, John C. of Baltimore, Walter and Lawrence, both of Pennsylvania, and William H. and Samuel, both of North Carolina, and two sisters, Ida Mae Mabry of Suffolk, Va., and Annie Lee Harris of North Carolina.