Who is Rose Vargas?

Rosa Vargas is a woman with a houseful of children, who was abandoned by her husband. She cries daily the man who left her.

"They are bad those Vargas, and how can they help it with only one mother who is tired all the time from buttoning and bottling and babying, and who cries every day for the man who left without even leaving a dollar for bologna or a note explaining how come."