seaman register out of england

Hi again from New Zealand. I have been lucky enough to find Didrick Wohlert in several court records here in New Zealand, and now know he was on board the Marere(a Tyser line cargo ship from England via new york to australia and New Zealand. He jumped ship and ive found him working on a coastal schooner here named the CLYDE after 1908. Can you give me a starting point to search for a seamans register entry out of Liverpool on the Marera? I have also just discovered a marine accident report of the incident when he fell from a mast and broke both legs, im awaiting a copy. Would there be Tyser line Ltd data or are seamans registrations a separate entity?regards Graeme Duckett