One of the medals I'm finding the most difficult to research was awarded to 215 Able Seaman E. O'Connell. O'Connell served in the NSW Naval Contingent that deploted to China in 1900. The conflict is commonly known as the Boxer Rebellion.
All I know about O'Connell is his number and that he was from Newtown in Sydney. This is one search I would really like to finalise. O'Connell's entry in the AWM website can be seen here.