Peacock has been described as "one of the most durable contributors" to the first edition of the Oxford English Dictionary.[10] One of the works which he used as a source for 51 original submission slips is a lost work called Meanderings of Memory; although the dictionary's current editors have been unable to find that work, the credibility of Peacock's other submissions has led them to assume that the book actually existed.[10][11]
(ed.)The army lists of the Roundheads and Cavaliers, 1863
English church furniture, ornaments and decorations, at the period of the Reformation : as exhibited in a List of the Goods destroyed in certain Lincolnshire churches, a.d. 1566, 1866
(ed.) A list of the Roman Catholics in the county of York in 1604. Transcribed from the original ms. in the Bodleian library, 1872
France, the empire, and civilization, 1873. (Published anonymously)
A glossary of words used in the wapentakes of Manley and Corringham, Lincolnshire, 1877
Index to English speaking students who have graduated at Leyden University, 1883
Index to engravings in the "Proceedings of the Society of Antiquaries", 1885
Novels
Ralf Skirlaugh, the Lincolnshire Squire, 3 vols, 1870