|First issue||October, 1911|
|Final issue||July, 1927|
Other editors included over they years Henry Hatton and other SAM presidents.
Starting with the June 1917 issue, Houdini became editor (this was years after his own magazine Conjurers' Monthly Magazine. John Mulholland was his assistant editor. Houdini was underwriting the cost of its publication and on his death in 1926 they could no longer afford to keep it as a separate magazine. A deal was worked out to include the MUM inside the Sphinx with Mulholland as editor.