Bob Fitzgerald lives on the edge of a flat field that's just a few feet above sea level. It's the same spot on Maryland's Eastern Shore where his ancestors settled before the U.S. became a country.
"The land grant came into the family in 1666," he says.
When he was a child his parents grew tomatoes, cucumbers and string beans. Now nearing 80, Fitzgerald plants corn and soybeans to supply local chicken farms.