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John R. Steelman
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|John Roy Steelman|
| 1st Assistant to the President of the United States |
1st White House Chief of Staff
|President||Harry S. Truman|
|Succeeded by||Sherman Adams|
|Born|| June 23, 1900|
|Died|| July 14, 1999 (aged 99)|
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. The office later became the White House Chief of Staff.