Note: 1900 Minnesota Census, p. 6A: Walter C. (51) is listed as a patient at the Fergus Falls State Hospital for the Insane in Fergus Falls, Otter Tail Co. It is noted that he is unmarried.
Note: 1910 Minnesota Census, p. 3A: Walter P. (61) is listed as doing ward work as an inmate at the Anoka State Asylum for the Insane in Anoka City (ward 3), Anoka Co. It is noted that he is married.