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| style="background: #ccf; text-align: center;" | '''This article is part of the'''<br>'''[[Venona project|Venona]]'''<br>'''series.'''

! style="background: #ccf;" | This article is part of the<br/>[[Venona project|Venona]]<br/>series.

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| style="text-align: center;"|[[CPUSA#Secret_apparatus|Secret apparatus]]

| [[CPUSA#Secret_apparatus|Secret apparatus]]

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| style="text-align: center;"|[[LaFollette Civil Liberties Committee]]

| [[LaFollette Civil Liberties Committee]]

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| style="text-align: center;"|[[Tennessee Valley Authority]]

| [[Tennessee Valley Authority]]

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| style="text-align: center;"|[[Univ. of Chicago Metallurgical Lab]]

| [[Univ. of Chicago Metallurgical Lab]]

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| style="text-align: center;"|[[Manhattan Project]]

| [[Manhattan Project]]

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| style="text-align: center;"|[[Perlo group]]

| [[Perlo group]]

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'''Clarence Francis Hiskey''' (1912-1998), born '''Clarence Szczechowski''', became active in the [[Communist Party of the United States]] (CPUSA) when he attended graduate school at the University of Wisconsin.  He became a professor of chemistry at the University of Tennessee, Columbia University and Brooklyn Polytechnic Institute. For a time Hiskey worked at the [[Tennessee Valley Authority]] and the University of Chicago [[Metallurgical Laboratory]], part of the [[Manhattan Project]].  Hiskey's wife may have been involved in [[espionage]] also.

'''Clarence Francis Hiskey''' (1912-1998), born '''Clarence Szczechowski''', became active in the [[Communist Party of the United States]] (CPUSA) when he attended graduate school at the University of Wisconsin.  He became a professor of chemistry at the University of Tennessee, Columbia University and Brooklyn Polytechnic Institute. For a time Hiskey worked at the [[Tennessee Valley Authority]] and the University of Chicago [[Metallurgical Laboratory]], part of the [[Manhattan Project]].  Hiskey's wife may have been involved in [[espionage]] also.