According to Catholic social teaching, migration should be a matter of choice, not necessity. People have a right not to have to migrate, and states have a responsibility to provide the minimal conditions that would allow their residents to flourish and realize their God-given rights at home.
Catholic citizens helped them find jobs and homes; sisters (nuns) taught their children English in Catholic schools; priests tried to protect their political interests and shield them from a sometimes hostile Protestant environment; the local church held religious festivals and social events.