These are the people who were responsible for turning the naked area into a settlement and ultimately a port with administrative and commercial facilities.
The reverse explains a little more about the group:
Left to Right
(Behind)
I G Rice (Assistant Engineer)
S. Ray (Accountant)
G. A. Graham (Engineer in Charge)
G.C. Chisholm (District Engineer)
W.G. Glover (Medical Officer) (the contributor of all these photographs)
In Front
H.E. Kent (Assistant Engineer)
A.W. Tyson (Assistant Engineer)