My best friend is one of two kidney transplant recipients in my state to have had two transplants. The first lasted about a decade and was from his dad, the second was from a car crash victim.

I am registered to be an organ donor upon my death, but I was never able to bring myself to be tested to see if I could donate to my friend. He never asked, either. I am registered to be a bone marrow donor, at least.
Why are you unable to keep your ducks? I'm sorry for your loss of them, but happy they have a good home.
Most importantly, congrats on your new kidney!