Or will I only remember him as he is now?
My husband was an internationally known Art Historian, specializing in Byzantine art, Russian and Greek Icons. He was an inveterate punster. Now, as you who are Alzheimer's caregivers know, he is someone who cannot dial a phone, use his computer, etc. This is not an urgent question, but perhaps some of you have wondered about this, maybe some of you can even answer it. I hate to think of the memory of this delightful man fading and being replaced by the vacant person he is now.
I understand your fear though. Even us ordinary people don't want to be forgotten. Maybe you could put together a memory book of sorts. Photos, papers he's written, get the family to write down their memories of him and add those.