| "When they persecute you in one state, flee ye to another" : petition to Pope Pius the Ninth by potential Irish emigrants to Brazil | | Article in Journal | | 2006 |
| Brazil in British and Irish archives | Marshall, Oliver | Monograph or Collective Volume | University of Oxford | 2002 |
| English, Irish and Irish-American pioneer settlers in nineteenth-century Brazil | Marshall, Oliver | Monograph or Collective Volume | University of Oxford. Centre for Brazilian Studies | 2005 |
| English-speaking communities in Latin America | | Monograph or Collective Volume | Macmillan | 2000 |