I have just linked a new audio recording of The True Story of U. S. Grant by Elbridge S. Brooks. Brooks is also the author of The True Story of Christopher Columbus, George Washington and Lafayette for which I have provided audio versions as well. You will find the link to Grant's book on the Elementary page of the Civil War under Biographies.
Special thanks to my friend, Bill Norton, for recording this for us. He was the one who recorded Lafayette, as well.
Here is a direct link: https://www.welleducatedheart.com/civil-war-elementary.html