In an even first half a defensive mix up allowed a lob over Nash's head onto the Preston bar. Apart from that the keeper was untroubled.
Wilson once again deputised well for St Ledger whilst Lewis Neal was a man possessed taking on anyone in his way as he tried to impress in a rare start due to Danny Pugh's suspension.
Preston were impressive without penetrating in the first half - there was a half hearted shout for a penalty when Nugent may have been pulled down by his shirt.
Preston came out of the blocks to dominate the second half. Ormerosd missed a chance when clean through while Nugent was menacing winning free kicks. Chilvers converted the pressure into points with a header from a Mckenna corner.
Lewis Neal also caused problems having a shot saved amongst numerous other chances for the Preston front line. Michael Ricketts came on and caused trouble late on.
With time running out Barnsley threw everything forward but to no avail coming close by hitting the post. Cralo Nash also had a long punt down the field turned over by the Barnsley keeper in what was an entertaining second half seeing the visitors come away with another valuable three points away from home.