Found in An Introduction to the Kabalah by Willliam Wynn Westcott (1910).
Fergus Hamel (1866-1942) was initiated into SRIA in 1903: V degree in 1909 and VIII in 1917. Apart from the membership, his connection with Wynn Westcott was deep as he was the husband of Westcott's second daughter Elsie Bridget. Sadly enough Elsie commited suicide in 1918, but despite the tragedy Hamel continued to stay in SRIA. Later Westcott nominated Hamel as a receiver of all his GD materials. It's an interesting fact that Fergus Hamel seems to be of German descent.