In 1958, L. Ron Hubbard delivered 133 lectures including the Clearing Congress Lectures in Washington, DC, the first six of which were filmed.
In October, he sailed to London aboard the RMS Statedam. In England, he delivered 45 lectures while reorganizing local offices.
With this accomplished, he set sail back to Washington in early December aboard the Saxonia.
19th Advanced Clinical Course - Washington D.C.: January - February 1958
The Clearing Congress - Washington, D.C.: July 1958
20th Advanced Clinical Course: July - August 1958 (Needed)
5th London Advanced Clinical Course: November 1958
Washington Staff Talk: December 1958