The 6-foot, 190-pound Williams, one of the top running backs in the 2013 class, called the Irish staff Monday night after practice and picked up an offer from Notre Dame, which is the seventh offer for someone who didn't think they would get any at such an early juncture of the recruiting process.
"I'm real surprised," Williams said. "I figured I wouldn't get any yet. I guess they think I have pretty good potential."
Not to mention talent. He is big, can run between the tackles and get to the outside, and clocked in at 4.39 seconds at the Pittsburgh camp this summer.
Williams was one of three running backs in WPC's backfield last season, and he rushed for 924 yards and 17 touchdowns on 100 carries.
But he figured his chance for an early Notre Dame offer went by the wayside when he couldn't get to Notre Dame's campus this summer.
"I was supposed to go this summer, but my flight got (cancelled) so I couldn't make it out there," he said. "I'm pretty excited. I figured since I didn't come to camp, I probably wouldn't get offered until next year, and that's if I went to the camp."
Williams' knowledge of his Notre Dame is rudimentary, but he will have plenty of time to learn about it through his discussions with the coaching staff and a possible future visit.
"I know it's a big, traditional school. It's one of the top schools in the nation," he said. "I talk to coach Molnar and I also talked to the running backs coach (Tim Hinton). They were basically just telling me and informing me about the history of Notre Dame."