Unpublished letters. Records of the American Catholic Historical Society of Philadelphia. Volume XI. Pages 351-356.

Míreanna comhchosúla

• Unpublished letters. Records of the American Catholic Historical Society of Philadelphia. Volume XI. Pages 215-220.
  de réir: Butler, T. R., et al.
  Cruthaithe: (1900)
• Unpublished letters. John Clipper to Rev. S. S. Cooper. Records of the American Catholic Historical Society of Philadelphia. Volume XI. Pages 70-71.
  de réir: Clipper, John.
  Cruthaithe: (1900)
• Unpublished letters. Records of the American Catholic Historical Society of Philadelphia. Volume X. Pages 226-230.
  de réir: De Smet, P. J., et al.
  Cruthaithe: (1899)
• Unpublished letters. Records of the American Catholic Historical Society of Philadelphia. Volume X. Pages 354-362.
  Cruthaithe: (1899)
• Church and Society Printing. Records of the American Catholic Historical Society of Philadelphia. Volume XVI. Pages 351-352.
  de réir: American Catholic Historical Society of Philadelphia.
  Cruthaithe: (1905)