The following photo is believed to be the four White brothers as follows :-

H. :- Hugh Gascoyne White - born 1887 - 465 & 740023
H. G. J. :- George Harold Jeston White - born 1891 - #951 & 740105
C. J. :- Cecil Jeston White - born 1893 - #952 & 740106
F :- Francis (Frank) Cogan Jeston White - born 1895 - #953 & 740107

Three of them have consequetive numbers indicating that they joined at the same time.

Download original photo full size.

[Photo courtesy of Darren O'Brien]