Some sources list Higginson's date of death as September 12, 1931 and others as September 13, 1931, but a death notice appearing in the September 14, 1931 edition of The Lewiston Daily (see The Lewistin Daily, September 14, 1931) with a dateline of September 13, 1931 states that he had died "yesterday," indicating that he died on 12 September 1931. The confusion regarding his date of death may arise from confusion over whether "yesterday" meant the day before the newspaper was published or the day before the dateline of the obituary.