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From familysearch.org 2 death records can be found. One gives his middle name as 'Mabozen' the other shows middle initial 'K'.
Wisconsin, Deaths and Burials
https://familysearch.org/pal:/MM9.1.1/XLFD-995
Name: Peter Mabozen Hansen
Burial Place: Fountain City, Buffalo, Wisconsin
Death Date: 27 May 1888
Death Place: Fountain City, Buffalo, Wisconsin
Age: 47
Birth Date: 06 Jun 1840
Birthplace: Germany
Marital Status: Married
Spouse's Name: Anna Kurth
Indexing Project (Batch) Number: B06542-3
Wisconsin, Deaths and Burials
https://familysearch.org/pal:/MM9.1.1/XLFD-M8X
Name: Peter K. Hansen
Burial Place: Fountain City, Buffalo, Wisconsin
Death Date: 27 May 1888
Death Place: Fountain City, Buffalo, Wisconsin
Age: 47
Birth Date: 06 Jun 1840
Birthplace: North Shleswig, Germany
Marital Status: Married
Spouse's Name: Annie Hansen
Father's Name: Geo. Hansen
Mother's Name: Helena Hansen
Indexing Project (Batch) Number: B06542-3
