Harley Wood. "Walter Frederick Gale (1865–1945)". Biography — Walter Frederick Gale. National Centre of Biography, Australian National University. Archived from the original on 14 October 2012. {{cite book}}: |website= ignored (help)
Harley Wood. "Walter Frederick Gale (1865–1945)". Biography — Walter Frederick Gale. National Centre of Biography, Australian National University. Archived from the original on 14 October 2012. {{cite book}}: |website= ignored (help)