Grant's birth name was "Hiram Ulysses Grant." When Grant was nominated for West Point, the application was made in the name of "Ulysses S. Grant" (nobody knows why this mistake was made). Grant adopted this name while at West Point, and was given the nickname "Sam" (U.S. = "Uncle Sam"). His mother's birth name "Hannah Simpson," and Grant did refer to his mother as "Hannah S. Grant," leading some people to conclude that the "S" stood for "Simpson." However, Grant himself told his friends that the "S" did not stand for anything.
Interestingly, Harry S Truman (or is there a period after the 'S'?) had the exact same situation with his name.
ulysses
Ulysses Simpson
U.S. Grant's first name was Ulysses.
Ulysses S. Grant but was born Hiram Ulysses Grant.
His wife's name Julia Dent. She was very pretty.
Hiram Ulysses Grant, a name passed on to US Grant, but mistakes by certain government officials changed his name.
Ulysses s Grants favorite shape was a circle
Hiram Ulysses Grant. It is frequently said that Grant's middle name was "Simpson." It was not. His middle name was "Ulysses" and he admitted that the "S" in his name stood for nothing.
Hiram Ulysses grant
Personal Memoirs of U.S. Grant
Grant's born name was Hiram Ulysses Grant, but when he entered West Point a mistake was made, entering him as Ulysses Simpson Grant, which he just kept
Julia Dent, cousin of James Longstreet.