With a keen eye for detail, John Jeronimus navigates his Watershed proofing post in the same way he guided his career as a professional engineer with CN Rail. During his tenure with Canada’s National Rail, he built bridges, determined tolerances and calculated loads for 35 years. There was no margin for error. In his retirement, John applies his fastidiousness to Watershed – perusing and proofing articles as they come across his desk. But it doesn’t stop there. Through thick and thin, John provides unrelenting support to the Watershed team.