John Hampden and the Battle of Chalgrove challenges the traditional accounts of Hampden's fatal wounding on 18 June 1643 and subsequent death.

The author's understanding of the English Civil War was learned leading re-enactors of John Hampden's 'Greencoat' Regiment onto famous English Civil War battlefields. He successfully challenged English Heritage to have the encounter at Chalgrove on its Register as a Battle. He wrote The Controversy of John Hampden's Death (2000), which exposed the facts about John Hampden's supposed exhumation. Oxoniensia published the author's research (2015), which was subsequently accepted by the Victoria County History. The author discovered Clarendon's private journal, which revealed the celebrated The History of the Rebellion (1702) to be fiction. The Journal of the Society for Army Historical Research published his article 'Clarendon and History' in 2021.