A double from George irst gave the Owls Under-18s maximum points from Saturday’s derby at Shirecliffe.
Hirst illuminated a hard-fought contest from which Wednesday emerged worthy winners.
Midway through the first half, the striker turned his marker on the edge of the area and unleashed a thunderbolt that flew into the top corner.
United showed more promise after the break and twice Dan Wallis made crucial saves, giving the visitors the platform for victory.
With 20 minutes to go, Jordan Lonchar broke free down the right and pulled back for Hirst to slam home from close range.
Wednesday: Wallis, Hughes (Brennan 68), West, Kirby, Lee, Cook, Lonchar (Reaney 88), Waldock, Hirst, Hunt, Preston