Dr. William Bert (Biddy) Settle, 68, who retired in 1977 after 29 years as a physician here, died of a cerebral aneurysm Tuesday at Howard University Hospital.

Dr. Settle was born in Corinth, Miss., and reared in Washington. He was a physician in Kentucky for two years before returning here in 1948 to set up a general medical practice. He also was a physician in Washington public schools for many years and a medical consultant for the old Capital Transit Co.

During World War II, Dr. Settle served in Europe as a captain in the 92nd Infantry Division.

A graduate of Dunbar High School and Howard University, he earned a medical degree from Meharry Medical College in Nashville, Tenn.

His professional memberships included the National Medical Association and the Medico-Chirurgical Society. He also was a member of the Pigskin Club, the Bachelor Benedicts, the Metropolitan Mr. and Mrs. Club and the Focus Club.

Survivors include his wife, Elinor B., of the home in Washington; three daughters, Dr. Bonita L., of Nashville, Cynthia S. Rankin, and Angela M., both of Durham, N.C.; his mother, Birdie S. Smith, and four sisters, Katurah Brooks, Ora Lee, and Mabel A. Settle, and Mildred S. Bradford, all of Washington; a brother, Raoul, of New York City, and a granddaughter.

The family suggests that expressions of sympathy be in the form of contributions to the Dr. William B. Settle Memorial Fund, Meharry Medical College. CAPTION: Picture, DR. WILLIAM B. SETTLE