Under their ownership, in 1929, the Silkstone seam was opened up. Sheffield steelmakers and Clyde shipbuilders John Brown & Company was a sub-lessee of Stewart and Lloyds and this continued following the sale to the Tinsley Park Colliery Company on 28 April 1936. The colliery was sold, included the adjoining brickworks and a house, for the sum of £310,000.
Under their management, in 1929, the Silkstone seam was made accessible. Steel producers from Sheffield and shipbuilders John Brown & Company were a sub-lessee of Stewart and Lloyds and this continued following the sale to the Tinsley Park Colliery Company on 28 April 1936. The colliery was sold, along with the adjacent brickworks and a house, for £310,000.