We are a Non Profit Polish Aid Association located in Grand Rapids, Michigan, dedicated to preserving the Polish Heritage and supporting our local community. St. Isidore's Benevolent Aid Society fondly known as Diamond Hall stands as a beacon of community supporton the Northeast side of Grand Rapids. Founded in 1892 to assist Polish immigrants, our nonprofit society has expandedits reach over the years, welcoming members from all walks of life. Housed in a historic building that once served as a mustard factory in the early 1800s.