Jacob Zimmerman House was the home of Jacob and Lena Zimmerman, German American settlers who came west over the Oregon Trail in 1851 to what became Multnomah County in the U.S. state of Oregon. Built in 1874, the house was part of a 600-acre (240 ha) dairy farm. Members of the Zimmerman family lived on the farm from 1870 through 1992. The house and 1.58 acres (6,400 m) were added to the National Register of Historic Places in 1986. In 1994, the city of Gresham began land acquisition and planning for a 5.98-acre (2.42 ha) public park, Zimmerman Heritage Farm, with the house as its centerpiece.