What leaders were involved in the phases of Reconstruction?

There were a number of leaders who were involved in the
various phases of Reconstruction.

The most famous of the
leaders were the presidents who ran the country during the Reconstruction Era. 
President Lincoln was involved in the very first phases of Reconstruction as he was
president as the war ended.  He had already laid out a plan for Reconstruction but did
not live to implement it.  Pres. Johnson was the other president closely involved in
Reconstruction.  He tried to carry out his own, relatively lenient
plan.

Johnson's efforts were rejected by the Radical
Republicans who then took over Reconstruction during the time known as Radical
Reconstruction (or Congressional Reconstruction).  The best known of their leaders were
people like Thaddeus Stevens and Charles Sumner.

These men
are the most prominent leaders involved in the Reconstruction
Era.