Historic Fitzwilliam Economic Development Association, Inc. HFEDA engages in activities that benefit the town of Fitzwilliam and its businesses in ways that maintain and enhance Fitzwilliam' Fitzwilliam, NH Businesses State Line Campground Fitzwilliam, NH Businesses Ashburn House Fitzwilliam, NH Other Attractions State Line Campground Fitzwilliam, NH Businesses Laurel Lake Campground Fitzwilliam, NH Businesses