| Author | Titles | 1.
| Gallagh, G. O'Kelly de | 1 | 2.
| Gallagh, O'Kelly de | 1 | 3.
| Gallagher, Ann | 9 | 4.
| Gallagher, Carole | 1 | 5.
| Gallagher, Colm | 1 | 6.
| Gallagher, Ellen, 1965- | 3 | 7.
| Gallagher, Sean | 2 | 8.
| Gallagher, Tom, 1954- | 2 | 9.
| Gallagher, Wes | 1 | 10.
| Gallagher, William | 1 |
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