Nineteen years after Congress established the District of Columbia in 1790, Dr. Phineas Bradley of Philadelphia purchased a farm known as Powell's Dividend and renamed it Clover Hill, a tract which later became Glenwood Cemetery.

Dr. Bradley arrived here to supervise the transfer of the Post Office Department to the District of Columbia. He later became Assistant Postmaster General. He and his wife, and his twice-widowed daughter and two sons-in-law, the Reverend I. Gilles of the Episcopal Church of the Ascension and attorney John Clements Kennedy, are all interred in the grounds of the old Clover Hill Farm, known since its Charter by Act of Congress of July 17, 1854, well before the Civil War, as The Glenwood Cemetery.