This a list of some of the most notable pardons (and commutations) granted by US Presidents since George washington. I usually don't cite Wiki sources, but I reviewed it and it looks legit:

http://en.wikipedia.org/wiki/List_of_peo...e_United_States

"Generosity. That was my first mistake."
"Experience must be our only guide; reason may mislead us."
"Instagram is Twitter for people who can't read."