What were two presidents were injured but were not killed?

After completing his term as President, Teddy Roosevelt survived an assassination attempt in 1912 when John Shrank shot him as he was about to deliver a speech as the Moose Party Candidate for President.

He suffered only a superficial wound. This was attributed to the fact that his folded up speech was still in his pocket and stopped the bullet. He insisted on finishing the speech before seeking medical treatment.

Ronald Reagan survived an assassination attempt in 1981 by John Hinckley, Jr. who later said he attempted to kill Reagan in an attempt to impress actress Jody Foster. The bullet, which Mr. Hinckley shot, narrowly missed President Reagan's heart.