As a young man, he was one of the so-called "Whitechapel Boys", a group including Isaac Rosenberg, Mark Gertler, David Bomberg, Samuel Weinstein and Joseph Lefkowitz (who coined the name in hindsight).
From about 1911, when Rosenberg arrived, they began to aspire to literary careers; and in the years before 1914 Rodker was a published essayist and poet, in The New Age of A. R. Orage and elsewhere.
[1] He went on the run, sheltering with the poet R. C. Trevelyan, before being arrested in April 1917, imprisoned, and then transferred to the Home Office Work Centre, Princetown, in the former Dartmoor Prison.
It published T. S. Eliot and Ezra Pound (the first edition of Hugh Selwyn Mauberley) and portfolios of drawings by Wyndham Lewis, Henri Gaudier-Brzeska and Edward Wadsworth.
He continued in publishing, on occult subjects under the imprint "J. Rodker" also, until a bankruptcy in 1932, when (along with other such ventures such as the Fanfrolico Press) his business folded in the Depression.
[3] John Rodker's father, David, joined the mass exodus of Jews from what is now Poland to escape the pogroms of the 1880s, moving to England, where, like a number of his family members, he worked as a corset-maker.
John's younger brother Peter, who used the surname Roker (without the "d"), served for five years during World War I and married Helen Scott.
The second marriage was to Barbara McKenzie-Smith (1902–1996), a painter, resulting in a son, John Paul (born in 1937),[3] whose surname was changed to Morrison when his mother, after their divorce, married E.A.