The hospital soon became overcrowded, so the state built 3 other facilities in Rochester, Fergus Falls, and Anoka.

Other hospitals also opened to reduce the population of patients but either closed or turned into retirement homes for the elderly.

[4] In 1911, the Asylum for Dangerous Insane officially opened on the campus of the St. Peter Hospital.

[4] After the attempted assassination of Bishop Patrick Heffron of the Diocese of Winona, Reverend Louis M. Lescher was committed to this hospital until his death in 1943.

[4] Records documenting the population and activities in the security hospital, including admission and transfer book (1911–1938), admissions index (1911–1963), daily movement of population record, dangerous insane (1911–1913), and scrapbook (1937–1987) kept by longtime medical director Charles G. Sheppard are available for research use.