The Collection of Postage Dues Fees in Ireland 1914 to 1925
The Post Office That Saved, Served and Almost Scuttled an Antarctic Expedition: A Postal History of the Second Byrd Antarctic Expedition
The Shilling’s Tale: Co-Evolution of Form & Function of the One Shilling Stamp in 19th Century Great Britain
Pioneer Period Expeditions to Greenland. Also received the American Philatelic Conference Best Write Up.
The Collection of Postage Due Fees in Ireland 1914-1925.
Official Mail of the Provisional Government and the Irish Free State 1922-1937
The Provisional Government of Ireland, December 1021 to December 1922
Irish Coil Stamps 1922 to 1940.