The first school, built in 1884, was remodeled and turned into a Sisters’ house and a place for school children to board. At the time, the school had only seven grades.

Construction of the current elementary school began in 1904 and was completed in 1906. The 8th grade and three years of high school were added in 1909 and a fourth year added into 1910. In 1912, the first class of five students received a high school diploma. The alumni association was formed in 1918.

The sisters moved into the basement of the grade school to permit the razing of the Sisters’ house by the parishioners. By January 16, 1924, the new convent was completed and the sisters took possession of it on February 9. This building was dedicated on May 29. In 1929, a porch was built over the rear entrance to the Sister’s Convent. In the fall of 1938, the old boarder’s dormitory on the second floor of the Sisters’ Convent was made into a library for St. Francis High School.

In 1948, a new asphalt roof was added to the school. In 1949, the senior class started the school’s yearbook, The Seraph, and named the St. Francis sports teams the Flyers in honor of Air Force pilots, Gordon Leenerts and Emmett Kelly, who lost their lives during World War II.

In October of 1961  St. Francis Auditorium was completed and dedicated by Archbishop Gerald T. Bergan. In 1966, the new high school was built, attached to the auditorium, and classes were moved from the Sisters’ Convent. Students from five parishes fed into the K-12 school and enrollment was 624. The convent space was converted from semi-dormitory into private rooms for the Sisters in February of 1968. In appreciation, the Sisters consented to allow the high school to establish a manual arts course in the basement of the convent. (more pictures in the gallery below)

Improvements continued to be made to the school buildings, a new roof was put on, the boiler was replaced, and part of the building was renovated for the Sisters. Things were also changing inside the school. In 1973, St. Francis had its first female student body president and first girls track team. The first girls basketball team hit the courts during the 1979-1980 inaugural season.

As the 20th century came to a close, St. Francis shifted from standard scheduling to block scheduling. To keep up with the changing times, the library was converted into an Internet lab/library with over 35 new internet-accessible Gateway 2000 computers.

In 2024, under the direction of Archbishop George Lucas, St. Francis returned to a K-6 school. The St. Francis High School was reopened as Archangels Catholic High School that fall.