Lawrence Heritage State Park :
http://www.mass.gov/dcr/parks/northeast/lwhp.htm
Massachusetts Department of Conservation and Recreation :
http://www.mass.gov/dcr/
Bread and Roses Heritage Committee, and Festival :
http://breadandrosesheritage.org
Greater Lawrence Community Boating Program :
http://www.boatingprogram.com/
Lawrence History Center :
http://www.lawrencehistorycenter.org/
Groundwork Lawrence :
http://groundworklawrence.org/
Lawrence Public Library :
http://lawrencefreelibrary.org/index.html
Live Lawrence :
http://www.livelawrence.org/
Essex National Heritage Area :
http://essexheritage.org/
City of Lawrence :
http://www.cityoflawrence.com/Pages/index