Andrew Johnson (December 29, 1808 - July 31, 1875) was the 17th President of the United States (1865-69), succeeding to the Presidency upon the assassination of Abraham Lincoln. He was the first U.S. President to be impeached. Это и многое другое вы найдете в книге History of the Impeachment of Andrew Johnson (Dodo Press) (Edmund G. Ross)