[Petronski]

Yes. The woman in the painting represents a passenger of the Lusitania. The painting was requested up thread.

[AnAmericanMother]

That's a different painting (the one that is captioned "ENLIST"), not by Christy but by Fred Spear, an artist with whom I'm unfamiliar.

The young lady in the "Gee I wish I were a man" poster is a classic "Christy girl". She was as famous in her day as the "Gibson girl", who predated her slightly.