
Months before WW2 was even over, at a March 1945 Congressional
Hearing, Joseph Thon, representing The National Organization
of Polish Jews in America, stated to the committee:
"The German people murdered, in cold blood, in excess of 6,000,000 European Jews"
"I accuse the whole German people that in the years 1939
to 1945 they slaughtered upward of 15,000,000 men,
among which there were 6,000,000 Jews."

Hearings before the Committee on Foreign Affairs House of Representatives
Seventy-ninth Congress, first session, on H. J. Res. 93B
This Congressional Hearing was over 13 weeks after the New York Times had reported that 6,000,000 Jews had been killed by the Germans:
New York Times
January 8, 1945
6,000,000 JEWS DEAD
The Jewish population in Europe has been reduced from 9,500,000 in 1939 to 3,500,000, it was estimated yesterday by Jacob Lestchinsky, exciled economist and newspaper man, in an address at the nineteenth annual conference of the Yiddish Scientific Institute.
Sources: Great films by Denierbud
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