'The Mabus Manuscript containing the Pedigrees of the Gentry of Carmarthenshire, Cardiganshire and Pembrokeshire .... carefully transcribed from the Copy of David Rowlands Esqr. of Chatham by J[ohn] J[enkins] Kerry, 1829'. The transcript was completed in 1830 by D. Davies, junior.
A catalogue of the books in the library at Crosswood, made by John Jenkins, 1824, with earlier catalogues, also possibly of the Crosswood library, made in 1784 and 1788.
'Welsh Tunes sent [by John Jenkins] to Mr. [John] Parry January 28th 1826 and the words adapted to them; with some observations on both'; a list, by John Jenkins, of 'Welsh Tunes wanted to which appropriate Words are found'; and 'Remarks on certain Welsh Tunes which are to be transcribed into ... " Melus Seiniau Cymru"....'