Sources |
- [S142] Royal Ancestry: A Study in Colonial and Medieval Families by Douglas Richardson. Salt Lake City, 2013.
- [S47] The History of Parliament. Some citations point to entries from the printed volumes not yet added to the online site.
- [S59] Maddison's Lincolnshire Pedigrees ed. A. R. Maddison, based on the work of Arthur Staunton Larken. London, 1902-06.
- [S439] Notices and Remains of the Family of Tyrwhitt by Robert Philip Tyrwhitt (as "R.P.T."). 1862.
- [S1371] "H.N.C.", "Procession of St. John of Beverly, and Notices of Sir Marmaduke Constable, and of the Tyrwhitt Family." The Gentleman's Magazine, February 1835, page 150.
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