When my husband died suddenly of a heart attack he became a donor. Few months later I received a letter saying that he had helped 8 to 10 people with the donation.
I was never told anything about what or where except they said something about the large bones which surprised me. I could only remember that I had phoned the hospital to say I wanted his body treated as a donor and his ambulance was just pulling up with the body.
Glad I thought of it in time rather than after the fact.