Have you found a connection to Professor (of Music) James Nash Ireland early 1800s

Question

Professor James Nash was father to John Oxley Nash who moved to Plymouth Devon U.K. And ran a Wholesale Fruit and vegetable business also had a boat that exported produce from Ireland to UK about 1840--1870. He was a water colourist and painted around Cornwall, Landsend. His work was exhibited at the Royal Acadamy