After his wife's death, John Macmillan Brown established the Helen Macmillan Brown Bursary, to be awarded to up to ten women students of the University of Canterbury each year. Her former pupil,
Edith Searle Grossmann, wrote a biography of Connon, which was published in 1905. In 1916, Helen Connon Hall was opened on Park Terrace, Christchurch. It was the first hall of residence for University of Canterbury students, and was home to up to 70 women students each year. When the university moved from its inner city site to its new site at Ilam in the 1970s, the building was sold to
Cathedral Grammar School. In 2017, Connon was selected as one of the
Royal Society Te Apārangi's "
150 women in 150 words", celebrating the contributions of women to knowledge in New Zealand. A marble bust of Connon is displayed in the
Macmillan Brown Library at the University of Canterbury. There is a memorial plaque to Connon in the Great Hall of the present-day
Christchurch Arts Centre; these buildings were originally
Canterbury College's campus. Christchurch Girls' High School awards a memorial prize in Connon's name each year. ==Further reading==