Peter Hammond Liddle OBE FRHistS (born 1934) is a British historian and author specialising in the study of the First and Second World Wars.
[1] In 1968 Liddle started interviewing people about their lives during and around the First World War, collecting oral history from the era.
[2] In 1974 Liddle visited New Zealand, where he interviewed 150 war veterans and took the diary of Hartley Valentine Palmer.
[14] In 2011 he published Captured Memories 1990-1918: Across the Threshold of War, an edited collection of twenty-nine interviews.
[8] Liddle was appointed Officer of the Order of the British Empire (OBE) in the 2023 Birthday Honours for services to heritage and public understanding of the World Wars.