Ulysses Simpson Grant commanded the Union (northern) army in the American Civil War from March 1864.
Mark Twain, center, in 1865.
US Presidential campaign poster for General Ulysses S. Grant Schuyler Colfax in 1868.
It was not until 1870 when the wide-eyed Twain, freshly off the publication of his first book, got the chance to meet the-then first-term President Grant.
It was a chance encounter that bred mutual admiration, which over time blossomed into a growing friendship and ultimately mutual understanding.
One of Grant’s first tasks as a colonel was to disband a group of about secessionists in Twain’s home state of Missouri who were making trouble for Union troops a few months before the Battle Of Belmont, pictured.