 Wilmot's biography was written in 1813 by his niece Olivia Serres, who had lived with her bachelor uncle as a child.Serres claimed that Wilmot himself was a pseudonymous author, having written the Letters of Junius, well-known Whig political tracts which defended democratic rights and freedom of speech, whose authorship had been much debated.Serres also asserted that Samuel Johnson admired Wilmot to such a degree that he "submitted his writings to the perusal of Dr Wilmot before their going to the press", and that he was close to the poet laureate Thomas Warton, with whom he exchanged poems.