The house was badly damaged by bombing during the Second World War and in 1951 the plaque was incorporated into a monument erected during development of the site into the Brunswick Wharf Power Station.
The monument was designed by Harold Brown and consisted of rough-hewn granite blocks from the walls of the West India Docks surmounted by a bronze sculpture of a mermaid.
It was used as a departure point for several explorers including Martin Frobisher for his second expedition to the north-west passage and associated with shipbuilding in the area.
[5] In 1928 a bronze plaque was erected on the dock master's house (Brunswick House, located around 100 yards (91 m) west of the current location of the monument) by an organisation named by Historic England as both the Society for the Protection of West Virginia Artefacts and the Association for the Preservation of Virginia Antiquities.
[4] During this time the East India Export Dock was being backfilled to provide land for the Brunswick Wharf Power Station.
The monument was designed by Harold Brown and consisted of a pile of rough granite blocks "hewn from the old quay wall of the historic West India Docks".
[5][4] The missing mermaid was replaced by a bronze sculpture of a mariner's astrolabe, a navigation instrument the expedition would have used, designed by Wendy Taylor.
[4] The renovated monument was unveiled by the US ambassador to Britain Philip Lader in a ceremony supported by the Jamestowne Society and featuring a marchpast by pike and musket re-enactors.