Home > Book > Gweithiau Oliver Thomas ac Evan Roberts Gweithiau Oliver Thomas ac Evan Roberts Dau Biwritan Cynnar Author(s) Oliver Thomas,Evan Roberts Hardback - £45 Language: Welsh January 1981 · 407 pages ·220x140mm · Hardback - 9780708307298 About the Author(s) Author(s): Oliver Thomas Oliver Thomas (1598 - 1653?) was a puritan cleric and author. Read more Author(s): Evan Roberts Evan John Roberts, was a leading figure of the 1904–1905 Welsh Revival. Read more