Original: John Roy Steelman (June 23, 1900 - July 14, 1999) was the first Assistant to the President of the United States, serving President Harry S. Truman from 1946 to 1953.
Simplified: John Roy Steelman (June 23, 1900 - July 14, 1999) was the first Assistant to the President of the United States serving President Harry S. Truman from 1946 to 1953.