MS.Add.4157: A description of St Michael's Church, Cambridge, 1814, 64 folios. According to Samuel Sandars the description is 'by M. D. Duffield of Carlton, near Middleham, Yorks'. There are occasional instructions for the printer in pencil.
MS.Add.4158: A description of Holy Trinity Church, Cambridge, intended for publication in the Gentleman's magazine, c. 1814, 58 folios. The description is in the same hand as MS.Add.4157, and, according to Samuel Sandars, is 'by M. D. Duffield, Carlton, Middleham, Yorks 1814'.