1895 – 1980
William Roberts has the distinction of being the longest living original Vorticist, and all through his life since 1914 Manifesto, considered himself a Vorticist.
He was born 5 June 1895 in London, and studied commercial art. Due to his talent for draughtsmanship, he was given a scholarship to the Slade School, where he attended from 1910 to 1913. He joined the Omega Workshops, though was not involved in the Round Robin Letter.
He was a signatory of the Vorticist Manifesto in Blast. However, he fell out with Lewis when the latter pronounced that:
…Vorticism, in fact, was what I, personally, did and said at a certain period…
Wyndham Lewis, Catalog Introduction, Wyndham Lewis and Vorticism, Te Tate Gallery 1956.
Understandably, Roberts took exception to him trying to make out it was all his own idea; a typically Lewisian utterance. It led to Roberts writing and publishing some pamphlets arguing his case, describing himself as a Vorticist.
He died 20 January 1980.
There is an excellent series articles, including many pictures, at William Roberts Society website.