From what I could find, Sirens are asking for help. The song they sing is a cry for help. They are described as acting/singing like a "damsels in distress".
Answer:
Mr Frank views himself as the leader of those in hiding, responsible for their safety.
Explanation:
Ever since the Nazi regime started and the Hitler order of capturing Jews started, many Jews were already captured and sent to concentration camps. For the Frank family and some other friends, they were in hiding in one secret room above the building where they have to be extra careful with the way they live their lives if they want to be safe. And for that to be successful, since they are hiding above an office, Mr. Frank tells the other fugitives about the dos and don'ts of the daytime so as to ensure their safety and survival.
The Cunninghams are a poor farming family in Maycomb. They are hard-working, but are not aware of many social cues, as they spend most of their time working on the farm. Walter Cunningham Sr. is a good man overall, but gets swept into the racism and hive-mindedness of the town.
The Ewells are also a poor family in the area, but do not have a good reputation in Maycomb. They live in a run-down part of town, their children only go to school the first day of the school year each year to sneak their way around the law, and their father is known around town for being a low-life. This proves to be true in the courtroom scene, when we find that Bob Ewell is also an abusive liar.
