| American influence in Ireland, 1760-1800 | Calkin, H. L. | Article in Journal | | 1947 |
| Anglo-Irish relations in the revolution of 1689 | Calkin, H. L. | Article in Journal | | 1946 |
| For and against an union | Calkin, H. L. | Article in Journal | | 1978 |
| La propagation en Irlande des idées de la révolution française | Calkin, H. L. | Article in Journal | | 1955 |
| Les invasions d'Irlande pendant la révolution française | Calkin, H. L. | Monograph or Collective Volume | | 1956 |
| Les invasions d'Irlande pendant la Révolution française | Calkin, H. L. | Article in Journal | | 1955 |
| The United States government and the Irish : a bibliographical study of research materials in the U.S. National Archives | Calkin, H. L. | Article in Journal | | 1954 |