Booker T. Harper, 67, a retired Navy research clerk, died of cancer Wednesday at Alexandria Hospital.

Mr. Harper began in 1926 at the Department of Agriculture's Bureau of Entomology. He joined the Navy Department in 1929, and retired in 1975, after 46 years of service.

He had lived in Alexandria since 1923. In 1927, he helped found the Departmental Progressive Club Inc., a civic organization. Among its activities, the club cosponsers, with the NAACP and the Urban League, voter registration drives in Alexandria. It also helps raise funds for the American Cancer Society. Mr. Harper had served as the club's president, business manager, recording secretary and as a member of the board of directors.

Mr Harper was born in Abbeville, S.C. He attended the old Parker-Gray school in Alexandria and Dunbar and Cardozo high schools in Washington.

He had been a member of Roberta Chapel Methodist Church since 1923, when he began attending Sunday school there.

Survivors include his wife, Mildred H., and a son, Mark, of the home; another son, Anthony T., a daughter, Robin, his mother, Frances Jackson, and a sister, Bereatha Hill, all of Alexandria; a sister, Fannie Smith, and two brothers, William and James L. Jackson, all of Washington and two grandchildren.