I believe that Reagan is the only president to survive being shot.
I think Teddy Roosevelt was shot and survived as well.
I found this:
“...On October 14, 1912, an unemployed saloonkeeper shot former president and Progressive Party candidate Theodore Roosevelt outside a Milwaukee hotel. Rather than being rushed to the hospital, Roosevelt insisted on delivering his scheduled 90-minute speech. By slowing the bullet, those lengthy prepared remarks may actually have saved his life.
Theodore Roosevelt’s opening line was hardly remarkable for a presidential campaign speech: “Friends, I shall ask you to be as quiet as possible.” His second line, however, was a bombshell.
“I don’t know whether you fully understand that I have just been shot.”
Clearly, Roosevelt had buried the lead. The horrified audience in the Milwaukee Auditorium on October 14, 1912, gasped as the former president unbuttoned his vest to reveal his bloodstained shirt. “It takes more than that to kill a bull moose,” the wounded candidate assured them.
He reached into his coat pocket and pulled out a bullet-riddled, 50-page speech. Holding up his prepared remarks, which had two big holes blown through each page, Roosevelt continued. “Fortunately I had my manuscript, so you see I was going to make a long speech, and there is a bullet—there is where the bullet went through—and it probably saved me from it going into my heart. The bullet is in me now, so that I cannot make a very long speech, but I will try my best...”
Reagan was the only President to survive that long after being shot, yes, that is true. However President James A. Garfield was shot by Charles J. Guiteau on July 2 1881, four months after his election as the 20th U.S. President. Garfield died 11 weeks later on Sept. 19, 1881.
The shooting was witnessed by Robert Todd Lincoln, one of President Lincoln’s sons, who had already gone through this experience years before, of seeing history being violently made. One bullet remained lodged in Garfield’s body. The doctors probed with unsterilized fingers and instruments, but could not locate it. Alexander Graham Bell devised a metal detector specifically for the purpose of finding that bullet lodged inside Garfield, but the metal hospital bed he was lain on made accurate detection impossible.
March 30, 1981 -- his famous words to Nancy Reagan when she arrived at the hospital following his assassination attempt, a line first attributed to boxing's heavyweight Jack Dempsey when he lost the title to Gene Tunney in 1926
"Honey, I forgot to duck."