Big hearts come in small packages, and that’s especially true for Colvin and Wesley Hamel. When the two Turlock youngsters heard that their neighbor, John Cronk, had been diagnosed with stage four medullary thyroid cancer, they knew they wanted to help. On Saturday, six-year-old Wesley and eight-year-old Colvin plan to host a lemonade stand, with all proceeds going directly to Cronk and his family.