Answer:
The "it" Mr. White doesn't want in his home is his dead son, Herbert. Mr. White also tells his wife that when Herbert died, his body was so mangled that he was only able to know it was his son because of his clothing, so it's likely the corpse may not have even been fully intact.
Explanation:
It's written from a third-person perspective.
First person: I, me
Second person: you
Third person: he, she, they
Hope this helps :)
Answer:
1) The children were running around the playground.
2) I had lost my purse.