Isaac C. Ketler: The Tragedy of Paotingfu. An Authentic Story of the Lives, services and Sacrifices of the Presbyterian, Congregational and China Inland Missionaries who Suffered Martyrdom at Paotingfu, China, June 30th and July 1, 1900 (New York/Chicago/Toronto: Revell, 2nd ed., 1902)
- Digitized:
> Internet Archive (digitizing sponsor: Google; book contributor: Harvard University)
> Internet Archive (digitizing sponsor and book contributor: Princeton Theological Seminary Library)
> Internet Archive (collection: opensource) - No copy listed in Wiener China-Bibliographie