I'm helping a friend try to figure out how to go about applying for the benefit for his grandfathers wife. (Grandfathers second marriage and she is not a vet). they are married and both are in the same assisted living facility, but their finances are kept separate. He was just awarded the benefit, they said they needed more info on spouse to give her the benefit. How does he go about applying for the spouse? Should he use the 21-4138 form? Does he need to submit the 21-2680? Should he do a whole new application? Any advice where to start?