Henry Kiddle

According to Readers Guide to The Mahatma Letters to A. P. Sinnett:

Kiddle, Henry, an American spiritualist who gave a lecture at Lake Pleasant, New York convention on August 15, 1886,entitled "The Present Outlook of Spiritualism," which speech was published in The Banner of Light magazine in Boston the same month. Certain passages from this talk appeared in ML-6 (11) from KH to APS. APS published much of this letter verbatim in his book, The Occult World, and this resulted in a claim of plagiarism by Mr. Kiddle. The incident became known in TS circles as "The Kiddle Incident." KH did not give APS an explanation of the matter until almost two years later (ML, p. 415 et seq.) See Appendix E [of Readers Guide to The Mahatma Letters to A. P. Sinnett].