I don't believe these are the correct parents. They lived in Illinois and Minnesota. On numerous census record Augusta Farina was listed as having 3 children/3 living and in the 1905 Minnesota State Census, Fred, Maggie and Helena are living with she and Fred. There is a Frederick E and Augusta Johnson on FamilySearch that Minna is attached to.
Sources
"Michigan Births, 1867-1902," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:NQFK-G26 : 20 February 2021), Minna Scheel, 25 Jun 1886; citing item 3 p 41 rn 607, Tittabawassee, Saginaw, Michigan, Department of Vital Records, Lansing; FHL microfilm 2,320,845.