Complex sentence: From January until August 1917, Randolph and Owen brought out the "Hotel Messenger" until their exposé of union corruption (wherein the headwaiters were selling uniforms to sidewaiters at high prices and pocketing the kickbacks from uniform dealers) resulted in their immediate dismissal.
Split into simpler sentences: From January until August 1917, Randolph and Owen published the "Hotel Messenger". But their exposé of union corruption (wherein the headwaiters were selling uniforms to sidewaiters at high prices and pocketing the kickbacks from uniform dealers) resulted in their immediate dismissal.