Smith was now again nominated for the rank of major general of volunteers, and Ulysses S. Grant, who was much impressed with Smith's work, insisted strongly that the nomination should be confirmed, which was accordingly done by the Senate on March 9, 1864.
Smith blev nu igen nomineret til at blive generalmajor i den frivillige hær, og Ulysses S. Grant, som var meget imponeret af Smiths arbejde insisterede kraftigt på, at nomineringen skulle bekræftes, og det gjorde Senatet så den 9. marts 1864.