Did US bankers fund the Russian Communist Revolution?

Yes; they did not only fund the Russian revolution, but also during the first years of the Soviet Union well into Stalin’s regime.

In 1917 Trotsky received in New York $20 million from Jacob Schiff, and further money from Sir George Buchanan, the Warburg family, the Rockefellers family, the partners of J.P. Morgan (with at least another $1 million), Olaf Aschberg (of the Nye Bank of Stockholm, Sweden), the Rhine Westphalian Syndicate, a financier named Jovotovsky (whose daughter later married Trotsky himself), William Boyce Thompson (a director of Chase National Bank who contributed $1 million), and Albert H. Wiggin (President of Chase National Bank).

A report on file with the State Department shows that “Kuhn Loeb & Co” bankrolled the first five year plan for Stalin. And Schiff continued to send money to Russia long after the true character of the Bolsheviks and Stalin was known to the world. Schiff raised another futher $10 million for Russia, supposedly for Jewish war relief aid, but later events revealed it to be a cover-up for a good business investment.

Arsene de Goulevitch, an important White Russian General, wrote:

"The main purveyors of funds for the revolution, however, were neither the crackpot Russian millionaires nor the armed bandits of Lenin. The 'real' money primarily came from certain British and American circles which for a long time past had lent their support to the Russian revolutionary cause… The important part played by the wealthy American banker Jacob Schiff in the events in Russia, though as yet only partially revealed, is no longer a secret."