Execution Dock His remains were gibbeted by the river Thames at Tilbury for three years. George Davis and William Watts, convicted for piracy for the "Cyprus" mutiny, were the final hangings at the dock on 16 December 1830. Some sources state there is a large "E" on the Thames side of the building at Swan Wharf, indicating the site of Execution Dock. Another source states it was approximately where the London Overground station now stands. Execution Dock Execution Dock was a place in the River Thames near the shoreline at Wapping, London, that was used for more than 400 years to execute
Salvador Pirates consul, Thomas Savage, learned about this conspiracy, and notified Rear Admiral George F. Pearson at Panama City. The Admiral had the passengers boarding the steamers at Panama City watched and when Hogg's command was found aboard the Panama Railroad steamer "Salvador", a force from arrested them and brought them to San Francisco. The Salvador Pirates as they came to be called, were tried for piracy by a military commission, convicted, they were sentenced to be hanged, but General Irvin McDowell commuted their sentences. To prevent any further attempts to seize Pacific coast shipping, General McDowell ordered each passenger on board