Spence brought with him a gravestone , which Matley 's widow had had made , and placed it on Matley 's grave .
Duke of Portland , Captain James Clarke Spence , visited the island again in 1811 - 1812 .
Spence brought with Duke a gravestone , which Matley 's widow had had made , and placed it on Matley 's grave .
Duke of Portland , Captain James Clarke Spence , visited the island again in 1811 - 1812 .