Found information on one of the wreaks at (8 42 02 N 171 13 18 E)
http://marshall.csu.edu.au/Marshalls/html/history/Taroa_ToreshimaMaru.html
http://marshall.csu.edu.au/Marshalls/html/japanese/Taroa/Taroa.html

This is the one that got me looking for them in this area, never found another with such detailed information.