| A bibliography of publications in the field of Eriugenian studies 1800-1975 | Brennan, Mary Lou | Article in Journal | | 1977 |
| An Irish manuscript in western Australia : John Howard's prayer book | Brennan, Mary M. | Article in Book | | 2015 |
| Are Irish voters biased against female candidates? Evidence from the 2020 general election | Brennan, MaryKeenan, Lisa | Article in Journal | | 2021 |
| Robert Alexander Stewart Macalister (1871-1950) | Brennan, Mary Lou | Article in Journal | | 1973 |
| Sisters of St John of God in Australia, 1895-1965 | Brennan, Mary M. | Thesis | | 2003 |
| Sisters of St John of God, 1871-1900 | Brennan, Mary Eugenia | Thesis | | 1999 |
| The Groves of Kilteevan | Brennan, Mary | Article in Journal | | 1994 |