Among the many dangers existing in our newly formed society, dangers that corrupt and threaten to undermine the Christian family, we consider none more injurious and fatal than marriage of Catholics to non-Catholics. How could a truly Catholic family be raised in the one home where the father and the mother are at variance with one another in matters of faith? Thousands of children are lost to the Church on account of mixed marriages. Christian parents, watch with a careful eye over the early acquaintances of your sons and daughters; forbid them any kind of associations that may ripen into dangerous friendships.

— Pastoral letter from Archbishop William Gross of Oregon City, Oct. 29, 1891

Editor’s note: Things have changed. While the church still promotes marriage between Catholics, the deep parochialism of the 19th century is gone. It’s important to recall that in 1891, Catholics were heavily persecuted by Oregon’s Protestant majority.