[1] He was appointed a Knight Bachelor in the 1970 New Year Honours for his services to the New Zealand justice system.

His inauguration ceremony at the Supreme Court in 1955 saw one of the largest-ever turnouts of Auckland society and Sir George Finlay remarked that Henry possessed a "wiseness, a sense of duty and an experience of men and affairs which should light his path to the end that justice should truly be done.

"[3] Sir Duncan McMullin described Henry as a humble man, devoid of pretence, with a meticulous approach to surveying evidence and a sharp mind to analyse issues at the heart of any case.

He remained active in New Zealand law well into his 90s, offering opinions and publishing articles on a range of legally related subjects.

[1] Following Henry's death in 2007 at the age of 105, the New Zealand Herald published allegations that he had secretly fathered two children with a young Māori woman from Te Arawa in the 1920s.