↑ William Harvey, The Visitation of Suffolke (Volume 2, S. Tymms, 1868), p.185.
↑ (en) Sir William Symonds et James A. Sharp, Memoirs of the Life and Services of Rear-Admiral Sir William Symonds: Surveyor of the Navy from 1832 to 1847, Longman, Brown, Green, Longmans, & Roberts, (lire en ligne), p.2-4
↑ Joseph Jackson Howard, ‘Spring’, The Visitation of Suffolk ( Whittaker and Co, 1866), pp.165-206.