I think that there is a possibility that, although James died overseas, he had an estate here as well. In all likelihood he had property or something of value here as well. If so, I think that these could be his estate papers here.
DEPOT TAB
SOURCE MHG
TYPE LEER
VOLUME_NO 0
SYSTEM 01
REFERENCE 76114
PART 1
DESCRIPTION GARDINER, JAMES.
STARTING 19310000
ENDING 19310000
REMARKS SURVIVING SPOUSE MARY GARDINER (BORN STUART).
I have also found estate papers for James Archibald, Ralph, Frank and John Joseph which I will send in a PM.