I found "Twenty years at Hull House" fascinating reading when I read it years ago. Written at a time when immigration was so fast, the US population doubled in ten years, at the same time as the frontiers were closed and new land was gone. Every city, including Chicago where Addams lived was bursting at the seams. Hull House and the settlement movement were attempts to give the immigrants somewhere to go to learn English, get some education and social services.
(I also love her description of visiting Count Leo Tolstoy in Russia, and experiencing his wooly headed version of social organization. His wife, the countess, organizes this banquet for Addams, complete with linen, silver, servants etc. and Tolstoy and his faithful daughter show up eating peasants brown bread and drink.
Addams goes home musing "Yes, I really should bake my own bread, but when would I find the time?")