[4] Both Mount Boone and Townstall church were garrisoned for the King in the Civil War, but were taken by storm, with the town of Dartmouth, by General Fairfax, on 19 January 1646.
Mount Boone, which was fortified with twenty-two pieces of ordnance, was taken by Colonel Pride, afterwards one of Cromwell's lords.
[5] In 1689 on the death of his son Charles Boone (1652-1689), MP for Dartmouth in 1689, the male line of the family became extinct.
[7] The heiress Mary Boone married a member of the Harris family[8] of Cornworthy,[9] six miles from Dartmouth, and in about 1679, the manor of Norton Dawney (the seat of the ancient lords of the manor of Townstal) was purchased by John Harris, under a decree of the Court of Chancery.
[10] In 1724 the estate with the mediaeval mansion house was purchased by John Seale, a wealthy merchant of the City of London whose family originated at Saint Brélade in Jersey.