When Richard Williams was working as an usher at Wrigley Field in the 1970s, becoming a father wasn’t even close to being on his radar.

There was certainly no way he thought he would one day be watching his son throw a gem for the Cubs at the same ballpark.

Trevor Williams took a perfect game into the 6th inning Monday night and picked up the win as the Cubs beat the Brewers 5-3. Richard watched the entire game with his other two sons, sitting in Jason Heyward’s family seats.

“Dreams come true,” Richard said during an in-game interview with Taylor McGregor on the Marquee Sports Network broadcast. “I’m a Little League dad and dreams come true. They really, really do and today was a beautiful day.”

Trevor finished the evening with 6-plus innings of work, striking out 6 and permitting 2 runs on 2 hits and 2 walks. The 28-year-old right-hander signed a free agent deal with the Cubs in February and made his dad a very happy man in the process.

Richard grew up on Chicago’s South Side and attended Brother Rice High School. His Chicagoland family was following all the action from home.

After the game, Richard was looking forward to chatting with Trevor about the outing, but mostly he was just anticipating a celebration of the momentous occasion.

“We’ll hug,” Richard said. “He’ll be emotional about this one. He put a lot into this start and I’m so thankful the Cubs grabbed him. I’m so grateful that I got to see him.”

Richard kept score in his own book the entire game — something he’s done most of Trevor’s playing career.

Trevor is set to get the ball next in Pittsburgh when the Cubs take on the Pirates over the weekend. You better believe Richard will be there in attendance.

“The consistency he has shown showing up for games is something that I don’t take for granted ever,” Williams said. “I’m just really thankful that my brothers were able to come out as well and see this.

“Knowing that I’ve got at least one fan in the stands when I’m pitching is something that I cherish.”