(en) C.H. Firth et R.S. Rait, « February 1643: Ordinance for Mr. Fiennes to raise a Regiment of Horse in Gloucestershire, &c., to seize Delinquents' Horses there », dans Acts and Ordinances of the Interregnum, 1642–1660, , 84–5 p. (lire en ligne)
(en) Thomas Salmon, « Chapter XL. The Trial of Colonel Nathanael Fiennes before a Council of War at St. Albans, for cowardly surrendring the City and Castle of Bristol, the iyh of December 1643. l9 Car-1 Taken out of the Account given thereof by Mr, Prvnn and Mr. Walker. », dans Sollom Emlyn, A complete collection of state-trials, and proceedings for high-treason, and other crimes and misdemeanours: from the reign of King Richard II. to the end of the reign of King George I. With two alphabetical tables to the whole, vol. 1, J. Walthoe senior, , 2e éd., 745–794 p. (lire en ligne)