My goal for my privateer was an all-female crew, so I use Jane Canary -- right now she's my First Mate. AND, when you promote her, her hubby Wild Bill Peacock promotes also (for gold), did you know that? So it's really two companions you're promoting by doing that quest.
She can train True Grit (Rank 3), Overwatch (Rank 3) and Double Tap (Rank 3) -- not too shabby, if you ask me.
Although, now that I think about it, she could use an Epic Strike along with her Musketeer's Mastery... @Ratbeard? Maybe with her next promotion?