irish military engineer turned artist: a life of creative expression john jeffery o'donnoghue, an irish military engineer turned artist, left an indelible mark on the art world with his captivating watercolour paintings. born in 1956 in west ireland, ireland, and passing away in 2008, o'donnoghue's artistic journey is a testament to his multifaceted talents. john jeffery o'donnoghue, as an irish military engineer, served as the assista…