Account books, 1883-1940, of Jacob Davies and his predecessor at Felinfach Forge, Blaen-y-coed, Cynwyl Elfed; a volume containing a history of Blaen-y-Coed Congregational church, 1895-1953; notebook containing miscellaneous accounts, 1910-1952, including wage accounts at Plasyrhendy, Boncath; memoranda and accounts, 1928-1945, relating to the Gymanfa Ganu of the Congregational chapels in the Trelech area of Carmarthenshire; minute book, 1912-1914, of 'Pabell Blodau'r Grug'; and musical and poetical compositions.