|description=was a relative of H. P. Blavatsky and the editor of her written works.
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|description=was an American Theosophist, editor and writer; a relative of H. P. Blavatsky, his mother was Lydia Dmitriyevna von Hahn, who was a second cousin to Helena Petrovna Blavatsky. He was and the editor of her written works, published in [[H. P. Blavatsky Collected Writings]] and other books.