American Hospice Foundation
Sesame Workshop
Materials for younger children and grief, along with a special section for military families
National Child Traumatic Stress Network (NCTSN)
Information about all types of trauma resources, with a special section for "Military Children & Families" that includes the following guides:
Traumatic Grief in Military Children: Information for Educators
Traumatic Grief in Military Children: Information for Families
Traumatic Grief in Military Children: Information for Medical Providers