Helen shook her head, panting. Tears glistened on her cheeks. "It's not your time. I know... oh, sweet girl. I know it hurts, but you have to stay here."
This looks promising for Water Works... She's crying as a combination of the effort of keeping Ginger here and at the prospect of losing her friend, I think.
Also, later on in the scene:
(show spoiler)Lifting her hand, which Mrs. Richardson did not release, Ginger wiped her eyes on the back of her arm.