[1] When Friedrich König, inventor of the steam printing-press, was in London in 1806, Thomas Bensley brought his fellow printers, Woodfall and Richard Taylor, into a consortium to develop a press.
John Taylor went through the files of the Public Advertiser at Woodfall's request, looking for earlier works of Junius; from the search 140 letters were marked up, and of these 113 were printed as being "by the same writer under other signatures".
Woodfall left it on record, on his father's authority, that Junius wrote the Letters signed "Lucius", "Brutus", and "Atticus".
Woodfall left in the manuscript a detailed review of John Jaques's Junius and his Works (1843), also doubting that Francis wrote the letters.
[1] Many of Junius's letters are in manuscript, which his father had preserved, passed to Woodfall, who printed the unpublished ones and added facsimiles of the handwriting.