It is said that the Hermetic Order of the Golden Dawn is one of three most influential organizations on Western occultism in the 19th and 20th centuries, along with the Theosophical Society and G. I. Gurdjieff. This organization is also known for involving some famous people in its membership such as Aleister Crowley and W. B. Yeats.
Although it shows somewhat dubious aspects, the origin of the organization traces back to 1887, when Dr. William Wynn Westcott, a London coroner and one of its key founders, found ‘part of a manuscript that was written in brown-ink cipher’.
Having frustrated with being a member of the Esoteric Section of the Theosophical Society, originally founded by infamous Mrs. Blavatsky, Yeats joined to the Hermetic Order of the Golden Dawn in 1890. It is said that when Alister Crowley, one of its prominent members, was thrown out of the organization, around the turn of the century, it was Yeats who played a significant role in doing so.
From a different point of view, some argue that Yeats discovered that the Golden Dawn incorporates ‘traditional European Cabalistic Magic and astrology, as opposed to the wisdom of the East’, unlike Blavatsky’s society he belonged previously.
Thus, soon after Crowley left the organization, Yeats took charge of a couple of important roles within the organization and enjoyed his membership until his death on 28 January 1939.
Reference:
Esoteric Order of the Golden Dawn (2007), William Butler Yeats, Golden Dawn Biographies (accessed 19/02/2010)
http://www.golden-dawn.org/bioyeats.html
Hefner, Alan G. (2010), Hermetic Order of the Golden Dawn, the Mystica (last modified 11/02/2010, accessed 19/02/2010)
http://www.themystica.com/mystica/articles/h/hermetic_order_of_the_golden_dawn.html
Hermetic Order of the Golden Dawn (2009), Biography of W. B. Yeats (accessed 19/02/2010)
http://golden-dawn.com/eu/displaycontent.aspx?pageid=151-biography-w.-b.-yeats