J. Sinclair Armstrong
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{{unreferenced}biography|date=January 2007}}
James Sinclair Armstrong served as chairman of the U.S. Securities and Exchange Commission between 1955 and 1957 and also served as a member from 1957-1961.
Chairmen of the United States Securities and Exchange Commission | |
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Kennedy • Landis • Douglas • Frank • Eicher • Purcell • Caffrey • Hanrahan • McDonald • D Cook • Demmler • Armstrong • Gadsby • Cary • Cohen • Budge • Casey • B Cook • Garrett • Hills • Williams • Shad • Ruder • Breeden • Levitt • Pitt • Donaldson • Cox |