@rosemarya @contentandwell ... I finally wrote my letter of gratitude to my donor family and submitted it to my transplant coordinator.for mailing. Here it is:

Hello Dear Family,
On November 28th 2018 two very important events occurred changing both our family's lives dramatically.
You lost a loved one and I was extended another lease on life.
My family and I send you our deepest sympathy. It must have been very difficult losing a loved one especially at that time of the year.
For my family it was the opposite. As you were saying goodbye we were rejoicing with the special gift of a life saving organ.
I was very ill the previous three years.
I am the mother of two children, a sister a daughter an aunt and a wife. We had much to celebrate as I could now live to see grandchildren and spend more time with my family.
Because of the liver transplant I am now regaining my health and hope to live a long and happy life.
That day I received the greatest gift a person could ever wish for - life.
We can not thank you enough for your loved one's selfless act.
A part of your loved one resides in me and I will cherish it and never forget the wonderful person who gave me the gift of life.
Most Sincerly,
Your organ donor recipient.

I hope that they get at last a little solace with this.