UPDATES 16-Mar-2013:    First published online. 6-May-2013:  Changes made in the "SHIP vs PLANE" section, noting that the short trip between Brisbane and New Caledonia may have been by the PENNANT; also updated related text in the "MISSING RECORDS" section. Added a footnote after the Promotion History Card in the "ACCURACY" section, which gives a few more details on the timeline for Hubbard's eventual promotion to Lt. Commander. 28-Aug-2013:   Minor wording changes in the opening section of the paper, Conclusions section and first paragraph of Separation section.  Prior version available here. 6-Sep-2013:  Added reference to an LA Times article from 1990 in the ACCURACY section.  Prior version here.