Elliot F. Coues

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

Coues, Prof. Elliot F., employed by the Smithsonian Institution, Washington, D. C., for many years a loyal and active member of the TS. Later he turned hostile and, in 1880, published an article in the New York Sun in which he made an outrageous attack upon the Founders, particularly HPB. She could not let this stand and sued Prof. Coues for $50,000, but died before the suit was finally settled. However, the Sun published a retraction and, when the suit reached the Supreme Court, the attorney for that newspaper confessed complete inability to prove the charges. In 1889, Prof. Coues was expelled from the TS for "untheosophical conduct." ML, p. 475. SH index.