I suggest he died at sea so will not be in the burial records,the amazing thing is that most of the fishermen and sailors could not swim in this time frame,in 1911 I supose he was working at the Harwich docks,which went along to Parkeston,I would have thought somebody born at Great Oakley and living 2 miles away at Parkeston in 1911 would not have moved anywhere else in his final years.
Best Regards