we all turned around to see the master standing in the doorway. his big body filled it. he was dressed for traveling, with a long coat that almost reached his feet and boots covered with red dust. in his left hand he held a sack, and his right hand held the arm of a boy in an iron grip.

—iqbal,
francesco d’adamo

which detail in the passage supports the inference that the master is harsh with the children?

“he was dressed for traveling.”
“his big body filled it.”
“in his left hand he held a sack.”
“his right hand held the arm of a boy in an iron grip.”

well stockyards mean a large yard containing pens and sheds, typically adjacent to a slaughterhouse, in which livestock is kept and sorted. and i'm assuming that by party you   mean a large group of people which does make sense because chicago is a very crowded place much like new york. stockyards tend to take up a lot of room due to needing the area for pens to keep animals in and the fact that stockyards are usually right by slaughterhouse where they process and distribute the product. so its much like a zoo but with some dead animal products close by.