J. E. O'Conor

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

O'Conor, J. E., a Theosophist who was en route to England aboard the ship Vega with William Eglinton, the prominent medium, at the time of the well-known "Vega incident." He wrote a letter to HPB which was transmitted to her at the same time as Eglinton's (see account in D, pp. 188-9). He was a friend of Mrs. Minnie Scott ... LBS, Letters X and XI, pp. 13-21.