The Crosbie Papers, including manuscripts relating to the Danish Silver Raid, in documents of the Estate of John Viscount Crosbie, NLI MS 5033, National Library of Ireland, Kildare Street, Dublin.
He also wrote on Irish non-military history including legends of famous castles such as Castlemartin and Ballyheigue, where a tale of a ghostly appearance was picked up later by the American expert on the paranormal, Hans Holzer, in his book The Lively Ghosts of Ireland.