The Sam Butler Callahan Foundation is a 501 (c)(3) nonprofit organization that provides a social community of support and financial resources to Ewing sarcoma patients and their families. The Foundation also exists to increase public awareness and fund research for Ewing sarcoma, the "forgotten youth cancer." Ewing sarcoma occurs in the bone or the soft tissue close to the bone, most often in in adolescents between the ages of 10 and 20. It is the second most common malignant bone tumor in children and adolescents and is devastating to youths around the world. Yet, childhood cancer is the most under-funded of all cancers in the world, and research for Ewing sarcoma in particular is almost non-existent.