Argentium Astrum

Argentium Astrum is a magickal society which was created in 1907. The goals of this magickal order are the pursuit of light and knowledge. 'The method of science, the aim of religion' are it's motto. Aleister Crowley founded this order. After his death it was taken over by Karl Germer. There are various lineages of Argentium Astrum. One lineage descends from the actress Jane Wolfe who was known as Soror Estai. Phyllis Seckeler founded the College of Thelema in 1973. She was a student of Jane Wolfe. 

This book is a useful biography about Aleister Crowley:  Perdurabo, Revised and Expanded Edition: The Life of Aleister Crowley