Victorian Framed & Glazed Silk Relief Plaque of the Explorer Sir Henry Morton Stanley.Victorian Framed & Glazed Silk Relief Plaque of the Explorer Sir Henry Morton Stanley. Sir Henry (1841 1904) was a Welsh American explorer, journalist, soldier, colonial administrator, author and politician who was famous for his exploration of central Africa and his search for missionary and explorer David Livingstone. He was Knighted in 1897, and served in Parliament as the member for Lambeth North from 1895 to 1900. He was born under the name of