Earlier this month, word got out that members of Donald Trump's 1968 graduating classmates at the University of Pennsylvania's Wharton School just simply don't remember him.

Well, except for Ted Sachs.

The Daily Pennsylvanian recently caught up with Sachs, a '68 Penn grad and retired consultant out of Illinois, who reportedly was the only Penn alum of the 13 that the DP contacted who remembered Trump at all. Which, as it turns out, may have something to do with how different The Donald apparently was back then.

"I thought he was a really nice guy," Sachs told the DP. "He was very self-effacing. He never talked about himself."

Today, that seems like an odd description of the Republican 2016 presidential frontrunner. Especially considering that Trump almost constantly uses his time at Wharton as a sign of his apparent pedigree, despite his having transferred to Penn from Fordham after two years.

"I went to the Wharton School of Finance," he said at a recent speech in Michigan. "I was really good at this stuff."

Sachs says that he and Trump "would get lunch occasionally," which later led him to be "lost" about the presidential candidate's public persona. However, Sachs seems to chalk that difference up to Trump knowing "something at that age that I didn't."

"Fifty years is a long time," Sachs told the DP. "After any relationship, does anyone really know a person?"