Did Senator John Sherman write a letter to the Rothschilds?

There is no widely known or documented instance of Senator John Sherman writing a letter specifically to the Rothschilds. John Sherman, a prominent U.S. senator in the late 19th century, is primarily known for his work on antitrust legislation, particularly the Sherman Antitrust Act of 1890. If such a letter exists, it is not part of mainstream historical records or discussions related to his political career.