the new locomotives built there were tank engines, some of them very long-lived; a few even survived the Second World War. 34 Class 0-6-0 108 Class 2-4-0 119 Class 0-6-0ST 322 Class 0-6-0ST 517 Class 0-4-2T 633 Class 0-6-0T 645 Class 0-6-0ST 655 Class 0-6-0ST 850 Class 0-6-0ST 1016 Class 0-6-0ST 1501 Class 0-6-0ST 1901 Class 0-6-0ST William Dean (1877 - 1902) Joseph Armstrong's early death in 1877 meant that the final phase of broad gauge motive power was the responsibility of William Dean. He continued the Iron Duke renewal programme and added more convertibles, including some of Armstrong's 388 class goods locomotives. He also developed some elegant express locomotives such as the 3031 Class singles. Following the abandonment of the broad gauge on 20 May 1892 the majority of the remaining 195 broad gauge locomotives were taken to "the dump" at Swindon. Most of the convertible locomotives were altered to run on the standard gauge over the following 18 months while the remainder were cut up. Dean had worked under Armstrong on and off for 22 years before becoming his successor and he perpetuated his locomotive policy for some time. He later produced standardised 0-6-0 and 2-6-0 goods locomotives (the 2301 and 2600 "Aberdare" classes), and 0-6-0STs of various sizes (the 2021 and 2721 classes). For express trains he initially developed the 2-2-2 type, culminating with the elegant 3031 class. He later moved on to the 4-4-0 type, producing the Badminton and Atbara classes with wheels, and the Duke and Bulldog classes with wheels. For branch line and suburban trains he built 31 3600 class 2-4-2T locomotives. Broad gauge Nos. 8, 14, 16 2-4-0 3001 class 2-2-2 3501 class 2-4-0T 3521 class 0-4-2ST, later 0-4-4T Standard gauge The majority of saddle tanks were rebuilt with pannier tanks from 1902 onwards. No. 1 4-4-0T later 2-4-0T Nos. 7, 8, 14, 16 experimental 2-4-0, later 4-4-0 No. 13 2-4-2T, later 4-4-0ST Nos. 17-19 0-6-4PT crane tanks (based on 850 Class) No. 36 4-6-0 No. 45 0-4-0ST River (69 Class) 2-4-0 Sharpies/Cobham (157 Class) 2-2-2 1661 Class 0-6-0ST 1813 Class 0-6-0ST 1854 Class 0-6-0ST 2021 Class 0-6-0ST 2201 Class 2-4-0 2301 Class 'Dean goods' 0-6-0 2361 Class 0-6-0 2600 Class 'Aberdare' 2-6-0 2602 Class 'Kruger' 2-6-0, one of the prototypes a 4-6-0 2721 Class 0-6-0ST 3001 Class 2-2-2, later 4-2-2 3031 Class 'Dean single' or 'Achilles' 4-2-2 3201 Class 2-4-0 3206 Class