Francis A. Kelly, 64, an attorney who specialized in farm questions and a retired commodity analyst with the Department of Agriculture, died of cancer Dec. 12 at Providence Hospital.

Mr. Kelly, who lived in Washington, was born in Travers, Alberta, Canada. He grew up in Pine Plains, N.Y. He graduated from St. Joseph's College and earned a law degree at the University of Buffalo. During World War II, he served in the Army in North Africa and Europe.

He practiced law in Warsaw, N.Y., and worked for New York State, where he was an associate of former governor W. Averell Harriman.

About 1960, Mr. Kelly moved to Washington as counsel for the National Farmers Union. He was a founding partner of what is now the law firm of Peabody, Rivlin, Lambert & Meyers. He also worked for former vice president Hubert H. Humphrey and former representative Bill Roy (D.-Kan). He joined Agriculture about five years ago and retired earlier this year.

Survivors include his wife, Cornelia, of Columbia, Mo.; three sons Christopher, also of Columbia, Hugh of Washington, and Francis Jr., of Lawrence, Kan.; two daughters, Katherine of Laredo, Tex., and Sienie of Boca Raton, Fla.; a sister, Joan Cauley of Nunda, N.Y.; two brothers, Paul of Allegany, N.Y., and John of Washington, and five grandchildren.