Following are links to organizations that you may find interesting and helpful.
Downers Grove Heritage Preservation Corporation
Downers Grove Park District
Downers Grove Historical Society
Village of Downers Grove Community Development Department
Downers Grove Coalition for Managed Redevelopment
Downers Grove Watch
Downers Grove Patch
The Nature Conservancy
Illinois Environmental Council
Environmental Defense
Great Lakes Information Network
The Conservation Foundationartner

Note:
The opinions expressed by these organizations does not reflect the opinion of Pierce Downer's Heritage Alliance.