https://greshamoregon.gov/Parks/Zimmerman-Heritage-Farm-Park/
The Zimmerman Heritage Farm is a 5.98-acre remnant parcel of the once 600-plus acre Zimmerman Dairy Farm, typical of 1900 turn-of-the century Columbia River dairy farms. The Zimmerman House is on the National Register of Historic Places.
Read more about the Zimmerman House on the