The early career of the nineteenth-century journalist and explorer is revealed in a memoir of his Civil War American travels, serving in both the Union and Confederate armies and the Union navy during his military career.
This is a narrative Stanley (the explorer who supposedly said, "Livingstone, I presume") wrote about his life. Disappointingly for me, very little of it was about his time in the Civil War. He fought with the Confederates at Shiloh, defected to the Union, went AWOL from there, and later signed on to the Northern navy. So supposedly the only person to have served in those three branches of the military during the war. The book is edited, full of footnotes about what historians say really happened in his life where it is known and clearly he was a teller of tall tales, so one is left not sure he's read much of anything that was non-fiction.