He was a member of the Committees on Insurance, Rural Economic Development, and Small Business.

[1] Hilgenberg attended the University of Wisconsin and Madison Area Technical College.

He was the former owner and operator of a commercial printing business and a former member of the Dodgeville School Board.

In 2010, Hilgenberg announced he would not seek re-election due to health concerns.

This article about a Democratic Party member of the Wisconsin State Assembly is a stub.