Dr. Henry DeCoursey Adams, 93, a dentist who practiced in Washington from 1918 until his retirement in the early 1970s, died Dec. 28 at the Shady Grove Adventist Hospital in Rockville. He had a stroke.

Dr. Adams, who lived at Asbury Methodist Village in Gaithersburg, was born in Boone County, Ky. He moved to Washington in 1909 and went to work for the Post Office. At night, he studied dentistry at Georgetown University and received his degree in 1915.

In 1918, he resigned from the Post Office and established a practice of general dentistry. He also taught at the Georgetown school of dentistry.

Dr. Adams was a former resident of Chevy Chase. He was a member of the Interfaith Chapel at Rossmoor Leisure World in Silver Spring and a former member of the Chevy Chase Presbyterian Church. He was a member of the American Dental Association and the D.C. Dental Society. He was a former secretary of the Montgomery County Historical Society and a member of the Columbia Country Club and Chevy Chase Lodge No. 42 of the Masons.

A son, Randal B. Adams, was killed while serving in the Navy in the South Pacific in World War II.

Survivors include his wife, Zellah B. Adams of Gaithersburg.