There was a book of Forman’s published posthumously ("Love’s Highway"), one edition of which contains a frontispiece portrait of the author.
Forman was popular in his day, and his work is ripe for rediscovery by Edwardian collectors, his books often being very decorative in design. "Journey’s End" was one of his best known titles (which now certainly has an added connotation), while "The Island of Enchantment" may have been the most beautifully produced of his books with its Art Nouveau cover, glassine protector and gift box. See here at Bookfinder.com:
By the time Forman sailed on Lusitania, he was supplementing his work as a novelist with playwrighting; he was also selling production rights to his stories to filmmakers.