In 1925 Allan and Iredale 's positions were reversed .
In 1920 Allan obtained a permanent position at the museum , and upon the resignation of Hedley in 1924 , was responsible for the Australia Museums 's conchology section with Tom Iredale as her assistant .
In 1925 Allan and Tom Iredale 's positions were reversed .
In 1920 Allan obtained a permanent position at the museum , and upon the resignation of Hedley in 1924 , was responsible for the Australia Museums 's conchology section with Tom Iredale as her assistant .