Nevinson had four pictures included in the Second Exhibition of the London Group held in March 1915. Nevinson's Futurist painting, "Returning to the Trenches", and the sculpture "The Rock Drill" by Jacob Epstein received the most attention and greatest praise in reviews of the show. After his father received assurances that he would not be posted abroad, Nevinson enlisted as a private in the Royal Army Medical Corps and spent the rest of 1915 working at the Third London General Hospital in Wandsworth. Despite its name, the 3rd LGH was a specialist centre for the treatment of both shell shock and severe facial injuries. Nevinson worked there as an orderly and as a labourer helping build roads and fit out new wards. Sometimes he would be sent to Charing Cross to meet, and unload, the hospital trains arriving from France and for a while he worked on a ward for mental patients. Nevinson married Kathleen Knowlman on 1 November 1915 at Hampstead Town Hall and, after a week-long honeymoon, he reported back to the RAMC but was invalided out of the service in January 1916 with acute rheumatic fever.