Saint Joseph in Dover, Ohio, was founded in 1849 and opened in 1850. The present church was dedicated in 1966. Immaculate Conception Parish was founded in 1870 for Irish railroad workers. The church was built in 1871 and rededicated in 1880 after being enlarged. Sacred Heart Parish was founded in 1895 and the church was built in 1928. All three parishes established elementary schools with Saint Joseph and Immaculate Conception also establishing high schools. Upon completion of eighth grade, students from Sacred Heart usually attended Saint Joseph High School.