Heartside was originally a marshy area near the Grand River. In about the 1850s, as Grand Rapids grew larger, Heartside became a
shanty town, populated by recent immigrants, particularly Irish. By the 1870s, the area had developed into a compact neighborhood containing small one and two-story clapboard houses. In 1870, the
Grand Rapids and Indiana Railroad ran a line through Heartside, and constructed a station at what is now Ionia Avenue and Oakes Street. The railroad, and the easy accessibility of transportation, led to a rapid growth of the region north of Grand Rapids and commercial and industrial development in Heartside. By 1900, Heartside was heavily built up with wholesale and manufacturing buildings, as well as stores and apartment buildings, hotels, and a new Union Depot. ==Heartside Historic District==