The Question and Answer section for Flowers for Algernon is a great resource to ask questions, find answers, and discuss the novel.
Mrs. Flynn is Charlie's landlady.
I told Mrs Flynn, my landlady, to call and tell hf. Donner I'm sick.
Oftentimes he tries to save his son from Rose's abuse but fails and gives in to her bullying. He tries to spend time with his son but is ineffective at changing his life.
What chapter are you referring to? I have an electronic version of the story.