Original sentence: When Frederick Augusta Barnard died in 1830 it was stated in The Gentleman's Magazine that 'He was presumed to be a natural son of Frederick, Prince of Wales', a statement repeated in the same Magazine in 1834, repeated in Edward Edwards, Lives of the founders of the British Museum (1870), page 468, and several subsequent reference works, and perpetuated by a descendant, the  herald James Arnold Frere, in his The British Monarchy at home (1963), pages 42, 45 and 139
Edited sentence: When Frederick Augusta Barnard died in 1830 it was stated in The Gentleman's Magazine that 'He was presumed to be a natural son of Frederick, Prince of Wales', a statement repeated in the same Magazine in 1834, repeated in Edward Edwards, Lives of the founders of the British Museum (1870), page 468, and several subsequent reference works, and perpetuated by a descendant, the eccentric herald James Arnold Frere, in his The British Monarchy at home (1963), pages 42, 45 and 139