(1813–1860). English stonemason, sculptor, and architect. He carved the sculptural decorations on the King Edward VI Grammar School, Birmingham, to designs by Pugin, and later Barry appointed him superintendent of stone carving for the Palace of Westminster (much of the statuary on the north and south fronts was carved by Thomas), He designed Somerleyton Hall, Suffolk (begun 1844) in a Jacobean Revival style for the builder and entrepreneur, Sir Samuel Morton Peto, Bt. (1809–89—one of the guarantors of the Great Exhibition of 1851), and Preston Hall, Aylesford, Kent (begun 1850—in a more repellent Jacobean style), for Peto's business partner, Edward Ladd Betts (1815–72). A protégé of Prince Albert, Thomas made carvings for Balmoral and Osborne House, and was responsible for the Audience Chamber and the Model Dairy, Home Farm, both at Windsor, Berks. He designed the great majolica fountain, the centrepiece of the 1862 Great Exhibition.
From A Dictionary of Architecture and Landscape Architecture in Oxford Reference.