Thank you -
Thorough research has already been carried out but thought I'd post on Roots Chat just in case something might come up or occur to somebody - just a long shot...
Merchant navy lists: there's nothing for the period, they stopped registering merchant sailors from about 1850 till 19 something.
Crew lists were destroyed except for years ending in "5" so 1895 & 1905 and these aren't online, and are indexed by the name of the ship, not the crew.
Relative of William Eke looking for the information lives in Australia - knows about admin/arrangement of records etc. All Australian State 'on-line' records have been checked for the relevant time period - visits to other states to physically search records planned.