1872 | A new parish and school opened, consisting of four classrooms where grades three and four were taught together. The School Sisters of Notre Dame ran the school.
1873 | Mother Caroline purchased two lots on Fourth Avenue and built a home for the Sisters.
1882 | St. Anthony Church was erected, with an addition built in 1889.
1895 | 112 children received their First Holy Communion.
1906 | The Sisters built a larger convent south of the church. The Parish Hall was constructed in 1907.
1920 | The school building was condemned, and Archbishop Messmer dedicated a new school.
1933 | Enrollment reached 561 pupils. Due to overcrowding in the first grade, kindergarten was closed.
1936 | An Individual Progress Room was introduced to provide specialized attention to students with "low intelligence," helping them develop their talents.
1938 | Fourteen Sisters taught at the school, and classrooms reached full capacity. Tuition was not charged; parish membership was the only requirement for enrollment.
1941 | Two St. Anthony School boys entered the Seminary.
1945 | A new lunchroom opened, and students celebrated with cookies and soda.
1946 | Forty-nine students graduated, with thirty continuing their education at Catholic high schools supported by the Education Fund. One graduate joined the Oblate Fathers, and five men from St. Anthony began studying for the priesthood.
1958 | Following a fire at Holy Angels School in Chicago, fire inspections were intensified, and the school building was improved.
1963 | Bishop Jerome Hastrich administered Confirmation for the first time and blessed the Sisters afterward. The bishop had been a student at St. Anthony Parish.
1965 | The student body became more diverse, though enrollment dropped to 342. The School Sisters of Notre Dame were replaced by Sisters from other orders, including the Sisters of St. Francis, Dominican Sisters, and Sisters of St. Joseph.
1975 | Demographics in the area shifted, with Vietnamese and Hispanic families becoming the dominant groups in the parish. Vietnamese nuns began teaching students of Vietnamese descent in the convent.
1984 | Pastor Dulek and Principal Mason focused on enhancing the school’s administration and curriculum. A new kindergarten program for four- and five-year-olds was introduced, reflecting the growing diversity of the parish, which now included Hispanic, Puerto Rican, Vietnamese, and African American families.
1992 | Enrollment grew with new educational opportunities supported by the PAVE Program.
1998 | The Wisconsin Supreme Court became the first state high court to allow religious schools to participate in a publicly-funded voucher program.
2004 | The Reading First Grant introduced a new direct instruction program. The same year, the faculty adopted the Core Knowledge Curriculum, which emphasized Science, History, and Literature.
2009 | Due to increased enrollment, the fourth grade was moved to a new building, Maria Hall.
2009 | St. Anthony High School opened at Christ King Hall.
2012 | St. Anthony High School moved to its current location, serving approximately 340 students.
2013 | St. Anthony Preschool and Daycare opened and earned a Five-Star YoungStar rating.
2016 | Enrollment reached nearly 2,000 students, spanning grades Pre-K to 12 across five campuses.
2019 | St. Anthony High School celebrated its 10th anniversary.
2022 | St. Anthony High School underwent renovations to house the newly established St. Anthony Middle School.
2022 | St. Anthony Parish and School celebrated its 150th anniversary.
2022 | The Viterbo Dual Certification Program was launched for high school students to receive Associate of Science in Education (ASE) degrees.
2023 | The Dual Language Program began at the K4 level.
2024 | The Dual Language Program expanded to the K5 level.