Central Illinois is a long way from Vermont or Canada, but that hasn't stopped the Funk family of Funks Grove, Ill., from building a multi-generational maple syrup business. Every year, the Funks collect sap from thousands of trees that have been passed down in their family and boil it into pure maple syrup. The acres of maple trees, along with syrup-making expertise and the love of a business that's unpredictable and laborious, are family assets that have sustained generations of Funks.