| ID | Repository | Reference | Date | Description | Collection |
|---|---|---|---|---|---|
| 3681 | UCC Special Collections & Archives | U2/BF1-94 | 1899 | Letters of O'Brien to Sophie O'Brien, 1899:1... | William O'Brien Papers |
| ID | Repository | Reference | Date | Description | Collection |
|---|---|---|---|---|---|
| 3681 | UCC Special Collections & Archives | U2/BF1-94 | 1899 | Letters of O'Brien to Sophie O'Brien, 1899:1... | William O'Brien Papers |