While at King’s, Hugh Wilson had joined the circle of young men who frequented the house in Trumpington Street of Charles Sayle, librarian, poet and literary scholar, a circle which in Wilson’s day included Rupert Brooke and Cosmo Gordon of King’s, George Mallory of Magdalene, and H.F. Garrett and G.L. Keynes of Pembroke. After leaving Cambridge and going abroad Wilson maintained his friendships with Sayle and with several of his contemporaries, principally by means of the written word. The flow of letters slackened once he had settled at Rugby, but increased again during his months on active service. Wilson was an interesting and entertaining letter-writer, and following his death Sayle decided to edit and publish a memorial volume of his letters, which appeared in 1919. The correspondence below comprises letters given to Sayle for this purpose (not all of which were included in the published volume), and his own correspondence with Wilson’s family and others.