| "On arrive!" - The Irish in the Franco-Prussian War | Ryan, Isadore | Article in Journal | | 2025 |
| Agnes Flanagan from Birr : a lonely résistante | Ryan, Isadore | Article in Journal | | 2023 |
| Agnes Flanagan from Birr : a lonely résistante | Ryan, Isadore | Article in Journal | | 2023 |
| Between detention and destitution - The Irish in France during the Occupation | Ryan, Isadore | Article in Journal | | 2016 |
| From Ballycroy to Buchenwald - the double life of Patrick Sweeney. How doubts about his identity led to an Irishman's internment in France and his deportation to one of the Nazis' most notorious concentration camps | Ryan, Isadore | Article in Journal | | 2022 |
| No way out : the Irish in wartime France, 1939-1945 | Ryan, Isadore | Monograph or Collective Volume | Mercier Press | 2017 |