Harold Edward Hare
From Theosophy Wiki

Harold Edward Hare (1868-????) was an English artist and Theosophist. He is best known as co-author with his twin brother William Loftus Hare of Who Wrote the Mahatma Letters.
The brothers were twins, born in the St. Pancras parish of London in the second quarter of 1868.[1] Their older brother Thomas owned an engraving works, and as young men they lived with Thomas and his wife.[2] In 1911, William and Harold were living in Middlesex, London, evidently unmarried. William was a "colour printer" (photo engraver) and Harold was an artist.[3]
