| A glorious extravaganza : the history of Monkstown parish church | Murphy, Etain | Monograph or Collective Volume | Wordwell | 2003 |
| Appendix 2. manuscripts of the Betham collection as appearing in the 1847 valuation-list | Sharpe, Richard | Article in Book | | 2018 |
| Betham and Lodge | O'Byrne, Eileen | Article in Book | | 1996 |
| Sir William Betham's manuscripts | Phair, P. B. | Article in Journal | | 1972 |
| The manuscripts of Micheál Óg Ó Longáin that were sold to Sir William Betham | Sharpe, Richard | Article in Book | | 2018 |
| The return of the Cathach to Ireland : conflicting accounts of the repatration of the Cathach from the Continent | Herity, Michael | Article in Book | | 2000 |