Henry Johnstone

The Board of Directors of Tucson, Ariz.-based GLHN Architects & Engineers Inc., unanimously elected Henry Johnstone, P.E., as GLHN’s new president. Johnstone, who previously served as vice president and director of mechanical engineering, will take over the day-to-day responsibilities of running the firm. Bill Nelson, who as president has guided GLHN through a period of growth and development during the past 25 years, will concentrate his efforts on business development and selective projects.