After he graduated from Victoria, he took courses in shorthand and typing. This enabled him to work as an associate to judges, and in 1937 and 1938, he first worked for Justice
Hubert Ostler and then for Justice
Peter Quilliam. During 1939, he travelled through Europe with friends and returned home just before World War II started. Ostler was friends with General
Bernard Freyberg and had recommended White to Freyberg based on his shorthand and typing skills. In January 1940, White was invited to meet Freybert and within 36 hours, he was commissioned as a
second lieutenant, and became his personal assistant and
aide-de-camp. Freyberg and White left for Egypt on 5 January 1940. White was responsible for writing the general's diary, attended all his meetings, listened in on all his phone calls via a second set, was on the frontline whenever Freyberg went there, and took many photographs. All through this period, White was aware that his work would likely be the basis of future history analysis. White served for Freyberg until 1945, with the general expressing his admiration: Speaking from my own point of view, I shall miss you for a long time. It seems hard for me to understand that you are not in the lean-to at the side of my caravan. I think you know how much you have meant to—Your devoted GOC—Bernard Freyberg. White returned to Wellington after the war and from 1945 to 1966, he was a partner with Young, Bennett, Virtue and White. His field of work was personal injury and accident compensation. White served as
solicitor-general from 1966 to 1970 and succeeded
Richard Wild in this role, who was his brother-in-law. He was appointed judge at the Supreme Court in 1970 and retired from it in 1981 (the previous year, it had been renamed
High Court). He was recalled as an acting High Court judge in 1982 and served until 1984. In 1983, he conducted a
royal commission into the
1982 Fijian general election. From 1984 to 1986, he was the acting chief justice of the
Solomon Islands and was a member of their
Court of Appeal during that time. File:Cricketer Lt H G Vivian meets All Black J Griffiths in Libya.jpg|Lieutenant
Giff Vivian (left) talks to
Jack Griffiths while General
Bernard Freyberg carries out reconnaissance (Libya, 1941; photo by White) File:Field Marshal Messe surrenders to General Bernard Freyberg in Tunisia.jpg|Field Marshal
Giovanni Messe surrenders to General Freyberg (Tunisia, 1943; photo by White) ==Community service==