Irene- I just read your post letting us know of your loss, your thoughts and your understanding of how we can find things to be grateful for at a most difficult time "I am so glad my husband can finally breathe."
I found that finding the smallest things to be grateful for, as you have, helps us to help ourselves get through the difficult experience and the overwhelming moments of just wanting to fall on our knees from the overwhelming realization of what has happened and one is going through.
Yes, may the many memories that you, and that each of your children have, help "you all" at this time.
Barbara