author
A little-known Welsh historian, he is remembered for a focused study of Jacobitism in Wales and the life of David Morgan. His surviving work points to a writer deeply interested in local history and the political drama of the 18th century.

by active 1811-1841 W. (William) Llewellin
Very little seems to be firmly documented about this author beyond the bibliographic record, and many modern listings identify him simply as W. (William) Llewellin, active 1811–1841.
He is associated with David Morgan, the Welsh Jacobite: a contribution to the history of Jacobitism in Wales, a historical work centered on the Welsh supporter of the 1745 Jacobite rising. Surviving editions attribute the book to William Llewellin, and some records note the post-nominal letters F.G.S. and F.G.H.S., suggesting scholarly interests, though the exact details of his life are not clear from easily confirmed sources.
For listeners drawn to overlooked corners of British and Welsh history, Llewellin’s work offers a narrow but vivid window into the Jacobite story in Wales. Even with so little biographical information surviving, his name remains attached to a book that preserves a specific and unusual piece of historical memory.