Henry's career path followed an initial interest in military museology as Curator of Artillery,
Royal Armouries Tower of London and Royal Armouries Fort Nelson (1994–99), Head of Collections, Museum of the Royal Regiment of Artillery (2000–2003), then Head of Collections, Museum of Naval Firepower, Gosport Hampshire (2003–2005) where he supervised delivery of Firepower
Royal Artillery Museum in Woolwich in 2005 . Moving to Scotland he was Director,
Museum of Scottish Lighthouses, Fraserburgh before becoming Head of Collections,
Dundee Industrial Heritage, covering
RRS Discovery and
Verdant Works. He was appointed Director of Heritage,
Surgeons Hall Museum.
Royal College of Surgeons of Edinburgh in 2010. Here he organised financing and delivery of the £4.5 million Lister Project which transformed the Museum layout and displays. This project was nominated for six different architectural and heritage awards and was Highly Commended in the RICS Awards for 2016. He retired from this post in 2023. == Exhibitions ==