Unrelated transgender protocol question... When referring to events in the past, do you use the gender the party identifies as now, or the gender they (at least publicly) identified as at the point in time the events occurred? I suspect that might vary from person to person, but in most cases, I expect they would prefer the former...
In this case at least, Manning always felt feminine. It just took a long time to personally work that out. The reason she joined the army in the first place was to make herself more manly, because she already didn't feel like a man at the time.