Among the contemporary Irish writers he has influenced are Thomas Kinsella; Michael Smith; James McCabe, who wrote a sensationally discovered continuation of Mangan's autobiography that appeared in the Dublin journal "Metre" in 2001, but was later revealed – in a Mangan-style hoax – to be written by McCabe rather than Mangan; and David Wheatley, author of a sonnet sequence on Mangan. He is also cited by songwriter Shane MacGowan as an inspiration for both his work and his lifestyle. McGowan's song "The Snake with Eyes of Garnet" features Mangan as a character: