She's now burried in the back yard under a new necterine tree. Drucilla will live on in your memory. Why don't you write down everything you remember about her and keep it in a safe place.
Documentation gives a kind of immortality, and preserves details that are fogotten over the years.
If you have a picture, put a copy with your story. It sounds like she had a good home and a good life with you. We have a special bottlebrush tree that they all now share and rest in peace under together. It is nice to read about someone else who loves their chickens as much as we do. All my perennial flower beds are full of the lovely ladies that have passed through our lives.