Thomas Joseph Ditchburn
From Graces Guide
Thomas Joseph Ditchburn (1801-1870) shipbuilder.
He was a shipwright apprentice at Chatham Dockyard and had worked under the famous constructor, Robert Seppings. Leaving the Admiralty he became a manager to Fletcher, Son and Fearnall of Limehouse. By 1830 he was master shipwright for the company. He altered the shape of the Magnet's bow, which so satisfied its owners that the yard became noted as builders of fast vessels.
He retired in 1846
1852 Listed as 'Ditchburn, Thomas Joseph, naval architect and ship and steam boat builder in all its branches. East India Road, Blackwall' 
Sources of Information
- 1852 Post Office London Directory (Small Edition)
A Short History of Naval and Marine Engineering by E. C. Smith. Published 1937