Was Reginald Bacon Third Sea Lord?

What was Reginald Bacon doing if he was not Third Sea Lord?

The proposed explanation keeps him in naval ordnance duties after promotion to rear admiral, with his seniority or deputy-controller wording creating confusion about the office he held.

Reginald Bacon had succeeded Jellicoe as Director of Naval Ordnance in 1907. His promotion to rear admiral complicates the titles because the ordnance post had previously been held by a captain. One proposed explanation is that he continued the same work under a more senior title before moving to Coventry Ordnance Works. That reconstruction supports the distinction between working in the Third Sea Lord's administration and holding the office itself.