The Reds 3 (Done 11, Gray pen 23, Wiseman 30)
Derby County 2 (Ward 69, Carroll 90+4)
It was all about the 'old boys' on a bitterly cold night at Oakwell after a first-half blitz meant Keith Hill's side ran out 3-1 winners. The brilliant Done and Wiseman - old boys of Rochdale - chipped in with two quality first-half strikes, along with the evergreen Gray who slammed home a penalty.
Although there's certainly nothing old about new loanee Korey Smith, celebrating his 21st birthday with an accomplished display.
With the Hillcroft empire put to the test due to the impending departure of top-scorer Vaz Te to West Ham, the unit showed no signs of breaking as the opening period was a display of desire and class as Tonge and Smith anchored a solid midfield - the latter playing his part with some incredible through-balls.
After Gray tried the spectacular with an overhead kick, Done got in behind on 11 minutes after an exquisite threaded pass from Smith and finished well into the far corner. The quality of the movement from Done matched that of Smith's pass.
The new loanee Smith might not have featured in the Premier League this season, but he was showing Premier League class - keeping a cool head on the ball and dishing out the passes.
Done then won a penalty from Tonge's defence-splitting pass as he was halted in the box, allowing Andy Gray to slam home from the spot with 23 played.
The third, and ultimately last of the Reds' goals, was arguably the best. Scott Wiseman dinking over the advancing Fielding like he was playing in La Liga, to celebrate his first Barnsley goal. Again it was Smith's accurate and astute through-ball that won't be forgotten.
In the second half it was mainly former Reds target Jamie Ward who posed the biggest threat after a resurgent Rams side hit back.
But the new loan duo of Tonge and Smith appeared to have slotted into the Hillcroft jigsaw perfectly - pulling the strings and standing strong when it counted.
As was expected, Derby hit back and it was Ward with a powerful 25-yard Free-kick that appeared to catch Steele out in the 69th minute.
The belief of the visitors was heading in the opposite direction to the temperature and their fans were raucous in their chants in a bid to help their side back into the clash.
When Nathan Doyle was introduced for Tonge, the former Derby midfielder might just have given Keith Hill a headache after putting in a real shift of determination in the heart of midfield.
Barnsley's best chance in the second period fell for Done - who showed nimble feet before bending just wide of Fielding as the 'keeper slipped. It seemed all was sealed although a late goal from Carroll narrowed the margin and it was too little, too late from the Rams.
Hillcroft's troops stood up and were counted to show that a team who work hard for each other have more than a chance to compete - and do these boys deserve that chance. Great performance. Great result.
Reds: Steele, Edwards, Foster, Davies, Done, Perkins, Wiseman (Hassell 87), McNulty, Smith (Noble-Lazarus 77), Gray, Tonge (Doyle 66).
Subs: Preece, Dagnall.
Derby County: Fielding, Brayford, Roberts, Bryson, Barker, Shackell, Carroll, Ward, Hendrick, Ball, Noble (Tyson 58).
Subs: Legzdins, Buxton, Davies, Bailey.
Referee: Andy Woolmer
Assistant Referees: Nick Greenhalgh and Gary Hilton.
Fourth Official: Alan Clayton
Attendance: 10,149 (1,395 away)
Man of the match, sponsored by BRITANNIA DRILLING LTD: Korey Smith