Don Herron, "Collecting Donald WandreiArchived 7 September 2008 at the Wayback Machine", Firsts: The Book Collector's Magazine, Oct. 1999: "Within a decade Wandrei began to write appreciations of his favorite writers. His article 'Arthur Machen and The Hill of Dreams' appeared in the Minnesota Quarterly in spring 1926, and led to an exchange of letters with the Welsh mystic."
Don Herron, "Collecting Donald WandreiArchived 7 September 2008 at the Wayback Machine", Firsts: The Book Collector's Magazine, Oct. 1999: "Within a decade Wandrei began to write appreciations of his favorite writers. His article 'Arthur Machen and The Hill of Dreams' appeared in the Minnesota Quarterly in spring 1926, and led to an exchange of letters with the Welsh mystic."