- NLW MS 8936D
- Ffeil
- [1914].
A typewritten essay entitled 'Records Historical and Genealogical of the Royal House of North Wales. The line of Tudor Trefor, Earl of Hereford, and the noble family of Mostyn de[s]cended therefrom ...'; together with two holograph letters to the author on behalf of Lady [Anna Maria] Mostyn of Talacre, Prestatyn, and of the Mount, Constitution Hill, Parkstone, Dorset, 5-31 January 1914.