George,
I know nothing about that cancer. I know it is a great thing you and your wife are doing by being there.
My mother died at the age of 47 from breast cancer. The thing that hurt her so, so, so much was that friends deserted her. I didn't sleep the last few days of her life as I was holding her hand so she knew she was not alone. Even when she lost conscientiousness, she knew I was there. Then, when my father got back from finally going home for some sleep, he kissed her, said goodbye and she breathed her last breath.
Her family was there for her. Friends, even when she was still able to work (she had two years notice) hurt her immensely without knowing it. They were protecting themselves and many don't know what to say. So, my friend, what you and your wife are doing is heroic in my eyes. I mean that from the core of my soul.
Mike