They're glued to their horses because they're nomadic, so they never completely settle in one place. I have never read Marcellinus before but that seems like the most logical answer. Hope thus helps!
Answer:
"Old Immigrants" are those moving to the US between 1810 and 1850. These immigrants are similar in that they mostly came to America for the same reason: economic opportunity. Some worked in or started businesses in the major cities.
Pair 6 would be the correct answer
Introduce multiple story lines