THAXTON, Miss. (AP) — Every morning, without fail and no matter the weather, Jeremy Graham wakes up at 1:45. Before his neighbors, before most farm animals, before most of his friends and family in this small Pontotoc County community.

He might have time to grab a quick bite to eat before heading to the milk barn a short drive from the home he shares with his wife, Beth, and their two daughters. By 2:30 a.m., Graham and some of his workers are ready to milk some of the nearly 200 dairy cows of the Graham Dairy Farm.

Fifteen hours later, after a second milking is done, Graham is ready to relax...