Dr. Edward E. Ferguson, 71, a retired Washington urologist and a clinical professor of urology at the George Washington University medical school, died of cancer Sept. 30 at the Mount Desert Island Hospital in Bar Harbor, Maine.

Dr. Ferguson was born in Trenton, N.J., and grew up in Washington. He graduated from the Bullis School, earned a bachelor's degree at Washington & Lee University and took his medical degree at George Washington University. During World War II, he was a major in the Army Medical Corps and served in Europe.

Dr. Ferguson was a former chairman of the departments of urology at George Washington University and Suburban hospitals and at the Washington Hospital Center. He also was a consultant to the National Institutes of Health, the State Department, the CIA and the Veterans Administration.

He had a private practice in Washington until 1977, when he retired. He was a clinical professor at the GWU medical school for 25 years. In 1978, he moved to Southwest Harbor, Maine, and became the first president of Maine Hospices.

Survivors include his wife, Genevieve, of Southwest Harbor; two daughters, Kathleen Timblin of Dallas, Sarah Farrington of Nassau, Bahamas; a stepson, Jeffrey Freeman of Davis, Calif.; two sisters, Della F. Brower of Sarasota, Fla., and Genevieve Sumarlidason of Fort Lauderdale, Fla., and two grandchildren.