1928–1930 約翰·華特·古格里 1930–1932 Edmund Johnston Garwood 1932–1934 Thomas Henry Holland 1934–1936 John Frederick Norman Green 1936–1938 欧文·托马斯·琼斯(第一次) 1938–1940
Bibcode:2005E&PSL.235..663C. ISSN 0012-821X. doi:10.1016/j.epsl.2005.04.028. Garwood, Russell J. Patterns In Palaeontology: The first 3 billion years of evolution