and Company Hedley (1865 - 1877) Built by Slaughter, Grüning and Company, it was probably named after William Hedley, one of the pioneers of the steam locomotive. John Gray (1865 - 1876) Built by Slaughter, Grüning and Company, named after John Gray, the engineer of the London and Brighton Railway. Melling (1865 - 1877) Built by Slaughter, Grüning and Company, it was probably named after Richard Melling, a canal engineer. Murdoch (1865 - 1892) Built by Slaughter, Grüning and Company. This locomotive was named after William Murdoch. Ostrich (1865 - 1877) This locomotive was built at Swindon. An ostrich is a large flightless bird; the name had previously been carried by a Fire Fly Class locomotive. Peacock (1866 - 1875) This locomotive was built by the Avonside Engine Company. This locomotive was named after Richard Peacock, a founder partner in the Beyer, Peacock and Company locomotive manufacturing firm. Penn (1866 - 1877) This locomotive was built by the Avonside Engine Company and named after John Penn, who served two terms as a president of the Institution of Mechanical Engineers. Phlegethon (1866 - 1887) This locomotive was built at Swindon. Phlegethon was one of the five rivers of the Greek underworld and the name had previously been carried by a Fire Fly Class locomotive. Pollux (1866 - 1877) This locomotive was built at Swindon. Pollux was the twin of Castor in Greek mythology; the name had previously been carried on a Fire Fly Class locomotive. Roberts (1865 - 1877) Built by Slaughter, Grüning and Company. It was named after Richard Roberts of Sharp, Roberts and Company Sharp (1866 - 1887) This locomotive was built by the Avonside Engine Company, it was named after Thomas Sharp of Sharp Stewart and Company. Slaughter (1865 - 1892) Built by Slaughter, Grüning and Company, this locomotive was initially named after Edward Slaughter one of its partners, but was soon renamed Avonside when the business changed its name to become the Avonside Engine Company. Stewart (1866 - 1877) This locomotive was built by the Avonside Engine Company, and named after Charles Stewart of Sharp Stewart and Company. Wood (1866 - 1892) This locomotive was built by the Avonside Engine Company. It was probably named after Frederick Wood, a railway engineer. Tank locomotives Beyer (1877 - 1887) Bury (1877 - 1892) Cerberus (1877 - 1892) Hedley (1877 - 1892) After withdrawal, Hedley was used as a stationary