William Murray Graydon

William Murray Graydon (1864–1946) was an American writer born in Harrisburg, Pennsylvania, on February 4, 1864. He became known for an exceptionally large output of popular fiction and also published under the pen names Alfred Armitage, William Murray, and Tom Olliver.

His work ranged across adventure fiction and detective stories, with a strong presence in writing for younger readers. Surviving editions and library records show titles such as The Camp in the Snow, The Cryptogram, Canoe Boys and Campfires, and In the Days of Washington, along with many stories connected to the long-running detective character Sexton Blake.

Sources agree that Graydon moved to England around the late 1890s and continued writing there for British story papers. He died in Cornwall, England, on April 5, 1946, leaving behind a huge body of energetic, plot-driven fiction that still turns up in digital libraries and reprint collections.