(((Donna))),
I am so very sorry for your loss. It won't be easy for your Dad or any of your family, but as I was told when I lost my husband of 36 years, "the only way out is through". I guess that applies to all of us and there is no way around it ( so many times I wished there was), but one day at a time we make it. You and your family have my sincere condolences.
Love,
Sue