Pentigily Dilyn Llwybr Arfordir Sir Benfro Dilyn Llwybr Arfordir Sir Benfro Wyn Hefin Heftet / 2008 / Walisisk
Battle of the Preselau 1946-1948 the Campaign to Safeguard the Sacred Pembrokeshire Hills Wyn Hefin Heftet / 2008 / Engelsk
Brwydr Bryniau'r Preselau 1946-1948 Yr Ymgyrch I Ddiogelu Bryniau 'sanctaidd' Sir Benfro Wyn Hefin Heftet / 2008 / Walisisk
In pursuit of Twm Carnabwth - The original leader of the Rebecca Rioters Wyn Hefin Heftet / 2022 / Engelsk
Ar Drywydd Twm Carnabwth - Hanes Dechrau Gwrthryfel Becca Hanes Cychwyn Gwrthryfel y Beca Wyn Hefin Heftet / 2022 / Walisisk
Mamgu, Sian Hwel a Naoni / Mamgu, Vicas Howells and Madame Tussauds Hanes a Hudoliacth Bro Maenclochog / Past and Present Magic of Maenclochog Wyn Hefin Innbundet / 2006 / Walisisk
Nithio Neges Niclas - Casgliad o Ysgrifeniadau Niclas y Glais Casgliad o Ysgrifeniadau Niclas y Glais Lolfa, Y Heftet / 2019 / Walisisk
