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.
Olivia Serres, in 1813, wrote a biography of Wilmot, who had been her uncle. She claimed that Wilmot himself was the author of "Letters of Junius," which were well-known Whig political tracts defending democratic rights and freedom of speech. The authorship of these letters had been disputed.