He continued the Iron Duke renewal programme and added more convertibles , including some of Armstrong 's 388 class goods locomotives .
Joseph Armstrong 's early death in 1877 meant that the final phase of broad gauge motive power was the responsibility of William Dean .
Joseph Armstrong continued the Iron Duke renewal programme and added more convertibles , including some of Joseph Armstrong 's 388 class goods locomotives .
Joseph Armstrong 's early death in 1877 meant that the final phase of broad gauge motive power was the responsibility of William Dean .