Charles George Jr.'s father is one of the names listed on the Light of Liberty Newberry World War I monument.
Military records said he died in battle on Nov. 9, 1918.
But instead he made it home to Williamsport after the war, bruised and battered from his injuries.
"The burial squad came by and took his dog tags," explained George's granddaughter, Jessica George.
It turns out the senior George was knocked unconscious from a nearby shell blast and was not killed in action.
"The rain revived him," Jessica said.
George Jr., 91, and World War II veteran, was one of those in attendance Sunday at the monument's rededication and anniversary celebration.
He said his grandmother refused to believe her son was dead when she got word from military officials who came to her door.
"He was a stowaway," he said, wondering how his father got on the boat back to the United States since there was no paperwork for the man.
World War I veteran Charles George Sr. died when he was 83.
George Jr. and his wife, Jane, have been married for 64 years.