A collected history of the communities of Llandyssil, Abermule & Llanmerewig. Abermule : Llandyssil Community Council, 1999. 146p
Brown, Roger L. Llandyssil : an uncertain rectory and an uncomfortable living. Montgomeryshire Collections 84 (1996), p. 103-13
Gibson, Alex. A cropmark enclosure and a sherd of later Neolithic pottery from Brynderwen, Llandyssil [sic], Powys. Montgomeryshire Collections (Transactions of the Powys-land Club) 78 (1990), p. 11-15
Morris, Philippa. Morris, Davies and Jones in Kerry, Montgomery and Llandyssul. Cronicl Powys. No. 20 (1989), p. 53-61 Parish of Llandyssil : St. Tyssil Parish Church and Bethesda and Moriah Presbyterian Chapels (Memorial Inscriptions). [S.l.] : Montgomeryshire Genealogical Society, c1996.
PS. The author, who is still researching and has progressed much further than at the time of the article, is happy to hear from any one with relevant queries about Llandyssil ( Peach Trees, Gravesend 2401 NSW)
Smith, Douglas W. Martin Grundman of Llandyssil. Montgomeryshire Collections (Transactions of the Powys-land Club) 74 (1986), p. 91