"From going from Sioux Falls, South Dakota, and then he left and went through so many different teams, and then for him to have the opportunity - finally - in the NHL, it's just unreal," Duehr's mother, Victoria, told FlamesTV on Tuesday.
"There's a lot people in the hockey community that known about Walker and I think they're pretty proud and pretty happy," added his father, Neil. "He's a role model for a lot of kids in South Dakota that this is doable.
"You've just got to keep working.
Last year, Duehr became the first-ever player from South Dakota to skate in the NHL.
Now, he's the first-ever to score in the NHL, too.
With 4:36 left in the second period of a scorelessgame, Duehr took a pass from St. Louis super-villain Nazem Kadri and buried it blocker-side on Thomas Greiss to give the Flames an all-important 1-0 lead.
The Flames went on to beat the Blues 4-1, with Dillon Dube scoring twice after surviving a bit of a scare.
Dan Vladar made 25 stops in the victory.
"I think I blacked out," Duehr laughed about the moment afterward, where he was hit my Blues defenceman Calle Rosen mid-celebration. "It was a pretty cool feeling and something you dream of, so it was pretty cool.
"I'm sure they (South Dakoan kids) see me doing it, it probably puts the belief in their head. Which it should. Anybody who puts their head down and goes to work can achieve pretty great things. Hopefully they can look at it and dream big."
Calgary native Jake Neighbours made it a 1-1 game only 21 seconds into the third, unleashing a sharp-angle shot that beat Vladar over the left shoulder.
Dube scored off a beautiful play from Lindholm, who poked a small-area pass into the slot after Tyler Toffoli forced a turnover, putting the visitors up 2-1 at 10:50. Blake Coleman added another with a spin-around backhand through the wickets, before Dube rounded out the scoring with an empty-netter at 16:39.
With the win, Calgary's record improves to 20-14-9.
"We played a full 60," Dube said. "They had their push and it was good for us to get one back and keep going from there. At 2-1, it's easy to just defend. But I think we kept to it, stuck to the way we needed to play and Colesy got the most important goal for us, so it was huge.
"We learned from the game before. There's going to be some swings, for sure, and to be able to get a couple right back early was really good for us."