Material relating to the history of the parish of Newmarket, including extracts from public records ('Welsh Records', Recognizance Rolls, Chamberlains' Accounts, 'Taxatio' of Pope Nicholas) and from Bodrhyddan estate muniments; a transcript of the boundaries of the parish made by John Calveley of Stapleford, 1813; transcripts of tombstone inscriptions; extracts from, and notes on, the parish registers; and notes and pedigrees from printed sources.