You are saying this is NOT the right family, yes? It's a different couple with the same names. Just wanting to clarify what you meant when you posted this birth record and two census records.
The original poster stated: “Their children may be Jennie b. 1887, Clarence b. 1889 and Harry b. 1890. The children are on the 1900 census for Oakland, Freeborn, Minnesota living with their aunt Realda Brekke (maybe called Randi).”
The Harry you found in 1900 in Stillwater can’t be the same Harry.
It's certainly worth pointing out that there's another, different family with similar names and ages.