I ran across a census that lists a "Fastner" family in Almena, Wisconsin. The census itself is hard to read and "Fastner" is not clearly written. Whether it's really Fastner or not, I don't know for sure. But here's the index info from Ancestry.com:

1930 United States Federal Census
Home in 1930: Almena, Barron, Wisconsin
Age: 72
Estimated birth year: abt 1858
Birthplace: Iowa
Relation to Head of House: Head

Household Members:
Name Age
Joseph L Fastner 72
Alice Fastner 43
Clarence P Fastner 17
Clifford J Fastner 12
Augusta Buchwald 72 (mother-in-law)

Source Citation: Year: 1930; Census Place: Almena, Barron, Wisconsin; Roll: 2560; Page: 7A; Enumeration District: 1; Image: 1020.0.

http://preview.tinyurl.com/yrouv5