William Swan Sonnenschein

William Swan Sonnenschein (5 May 1855 – 31 January 1931), known from 1917 as William Swan Stallybrass, was a British publisher, editor and bibliographer. His publishing firm, Swan Sonnenschein, published scholarly works in the fields of philosophy and the social sciences. as well as general literature and periodicals. In 1902 he became the senior managing director of the British publishing firm George Routledge & Sons.