The Internet Archive has full-text PDFs of Alban Butler’s twelve-volume set, Lives of the Fathers, Martyrs, and Other Principal Saints (Thomas Richardson, 1842–46):
- Volume 1
- Volume 2
- Volume 3
- Volume 4
- Volume 5
- Volume 6
- Volume 7
- Volume 8
- Volume 9
- Volume 10
- Volume 11
- Volume 12
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