John Clarke is the author of several books on Brookwood Cemetery, including The Brookwood Necropolis Railway, An Introduction to Brookwood Cemetery, The Glades of Remembrance, The Columbarium, and London's Necropolis: A Guide to Brookwood Cemetery. He also hosts a number of websites on transport and engineering related themes. His personal website includes further details of all his books along with a number of articles and comments regarding his ongoing research into Brookwood Cemetery.