The Jones family has lived in the Everglades for five generations. They’ve made their livelihods in Mack’s Fish Camp, a spit of marshland that straddles the county line between Broward and Miami-Dade out west. They live among seven-foot alligators, painted turtles, blue herons and white egrets. They make a living fixing airboats, renting out bungalows and serving as guides for tourists and government researchers. They are known as Gladesmen.