Merrill fifth-graders Nathan Woller, left, and Jack Zamzow participated in a St. Baldrick's fundraiser on March 22 in Green Bay. This is the seventh year in a row that the boys have raised money to have their heads shaved for the St. Baldrick's Foundation. Over the years their team 'The Merrill Dinosharks' has raised almost $20,000 to fund research to combat childhood cancer. Jack was diagnosed with Stage 3 High Risk Neuroblastoma in 2005. After 14 months of grueling treatment, Jack has been declared cancer-free.