HMS Minstrel or HMS Mystic or HMS Martial

It is difficult from the service record of Gordon, Frederick Joseph J6928 to determine whether the rating was on Blake (Minstrel), Blake (Mystic) or Blake (Martial) over the period of 12th May 1914 to 31st August 1917 HMS Minstrel was not at the Battle of Jutland. Whereas, HMS Mystic and HMS Martial were at the battle. For this reason Gordon, Frederick Joseph J6928 has been given a B (blue) status on the Battle Jutland Crew Lists project.