Who was Abraham Lincoln's first Vice President?

Who succeeded Abraham Lincoln as President of the United States? Who was President immediately before Abraham Lincoln? Which president served from 1861 to 1865? In what year did Abraham Lincoln first take office as President? Under which president did Hannibal Hamlin serve as Vice President? Under which president did Andrew Johnson serve as Vice President? Who was First Lady during Abraham Lincoln's presidency? Mary Todd Lincoln was married to which president?