[6] In 1988 he visited libraries in the United States to negotiate the borrowing of rare books for an exhibition planned in 1990 or 1991.
[7] After retiring from the Alexander Turnbull Library in June 1990, Traue took up a teaching fellowship at the librarianship department of Victoria University of Wellington.
[8] In 2004, Traue wrote an article for The Dominion Post expressing his concerns about planned changes to the Victoria University library.
[9] In 2009 he criticised planned developments to the National Library, responsible for the Turnbull collections, on the basis that it was "designed to be the library community's reserve bank, not just another Wellington retail bank trying to maximise the number of customers coming through the front door".
[12] In the 2006 Queen's Birthday Honours, Traue was appointed an Officer of the New Zealand Order of Merit, for services to the library profession.