Championship strugglers Barnsley have completed the signings of four players on loan until 1 January, 2007.
Wallwork signed a new contract in August
Swansea striker Leon Knight has been joined by midfielders Ronnie Wallwork, from West Brom, and Cheltenham's Grant McCann along with winger Kyel Reid.
Reid, 18, is a product of the West Ham Academy and plays on the left wing.
Wallwork, 29, was made available for a loan move by new Baggies manager Tony Mowbray after he slipped down the pecking order at the Hawthorns.