1851 Mr. James Abernethy was appointed Chief port of Swansea, he converted part of the tidal harbour into a floating dock.
1858 Abernethy constructed the South Dock, followed by the Prince of Wales Dock in 1881
1862 Abernethy presented to the Institution of Civil Engineers a Paper describing the South Dock at Swansea and his works at Blyth and at Silloth.
1893 Abernethy furnished designs for a new dock
1909 See plan of dockyard in 1909.
Also see Swansea Docks