The Cathedral of St. Joseph is a Catholic cathedral in St. Joseph, Missouri, United States. Along with the Cathedral of the Immaculate Conception in Kansas City, Missouri it is the seat of the Diocese of Kansas City-St. Joseph. The Cathedral Church, rectory and convent are all contributing properties to the Cathedral Hill Historic District on the National Register of Historic Places. The school building and the auditorium do not contribute to the historical nature of the district.HistorySt. Joseph ParishJoseph Robidoux settled the area that is now the city of St. Joseph in 1826. The Rev. Pierre-Jean De Smet, SJ was the first priest to visit the area in 1838. He met with Robidoux and expressed his desire to establish a chapel in his settlement. The first Mass in the settlement was said by another Jesuit missionary the same year in Robidoux’s log house. The Jesuits continued to visit the area between 1838 and 1845. Robidoux platted the town of St. Joseph in 1843.