Modeste Demers was a Roman Catholic Bishop and missionary in the Oregon Country. A native of Quebec, he traveled overland to the Pacific Northwest and preached in the Willamette Valley and later in what would become British Columbia.

François Norbert Blanchet was a French Canadian-born missionary priest and prelate of the Catholic Church who was instrumental in establishing the Catholic Church presence in the Pacific Northwest. He was one of the first Catholic priests to arrive in what was then known as the Oregon Country and subsequently became the first bishop and archbishop of the Archdiocese of Oregon City.