- NLW MS 1330C
- Ffeil
- 1889
An essay entitled The best means of developing the industrial resources of Wales by John E. Thomas, Wrexham, awarded a prize at the Brecon National Eisteddfod, 1889, and printed in The Transactions of the National Eisteddfod of Wales (London, 1890).
Thomas, John E., Wrexham Essay (1889), NLW MS 1330C