I am currently doing a 'nice' thing for a friend, whose mother has prepared research on Sir James Caird. Being an historical researcher and a passionate net surfer I have been able to find lots of info on the net about Sir James Caird even a photo on one of Shakleton's sites.
Seems I possess the entire genealogical history of the Walker family from New Zealand but have only started to delve into it - Sir James being an obvious high entry point.
I will be working on this material for a few weeks but please contact if we can be of mutual assistance on this side of the family.
Regards Peter Kellettwww.believeit2028.tripod.com