Description: (Marine Engineer)
John Elder, a Scottish marine engineer and shipbuilder, was renowned for his innovative work in constructing marine steam engines. In 1854, he introduced the compound engine as the most efficient form, transforming the use of steamships. His patents and engineering advancements enhanced the competitiveness of steamships over sail, leaving a lasting impact on maritime history. Elder's business flourished under his guidance, expanding rapidly and establishing him as a pioneering figure in marine engineering and shipbuilding.