Question

Which group of immigrants arriving by boat was processed at Ellis Island in the 1880s?

Answer 1

i just answered this one on plato: it was third-class and steerage-class passengers

Answer 2

Some information that I found  is that first- and second class passengers did not have to go through the medical inspection on the Ellis island - they were briefly inspected on the ship and it was believed that the prize of their ticket meant they were otherwise not going to have serious medical or legal problems.

So the answer would be: all other classes: which is -third-class and steerage-class passengers