How did the different Royal Navy reserve organizations relate to one another?
Short answerThey were parallel organizations aimed at different pools of naval experience and civilian volunteers, not a simple hierarchy of reserve tiers.
NotesThe Royal Naval Reserve drew heavily on former naval personnel and merchant seafarers with directly transferable skills. The Royal Naval Volunteer Reserve instead cultivated hobby sailors, professionals, and merchant officers through club-like local institutions with social facilities. These were sister organizations aimed at different recruitment pools, rather than superior and inferior tiers of the same reserve.