Society of Osiris Magicians
It came about after Worthington became disenchanted with the Demons Club of Baltimore for admitting too many non-magicians. The Society created rigid rules to ensure only "magicians" would be accepted. Worthington, good friend, Howard Thurston, even thought the test was too hard.
It's early reports were published in the Sphinx. Al Snyder and Louis V. Lane out of Charleston, West Virginia published the Osirian, for the organization. It only lasted fro 6 issues. Worthington then started the Tablets of Osiris, which he published from 1929 until 1943.