Henderson's place in the convoy argument

Was Henderson chiefly responsible for the trawler and commercial-ship acquisitions used in convoy work?

Henderson was heavily involved and influential, but he worked with other advocates and cannot explain the whole policy alone.

Henderson wrote the report that helped Jellicoe make the case for convoys. He was one advocate within a wider network rather than the sole originator of escort procurement. Other supporters included officers linked to Jellicoe and to interwar fleet-design debates. Henderson's importance lies in converting a body of naval thought into an influential case for policy.