Two essays on the origin of the bus service to Craig-Cefn-Parc established by William Griffiths, an essay in Welsh entitled ‘Cymeriadau gwreiddiol’ (‘original characters’) about the importance of originality of characters in old Wales, and miscellaneous correspondence relating to business and family matters, mainly addressed to Llewellyn and May Jones of Pontarddulais and Craig-Cefn-Parc. n.d., ?1930s