Jamie and I were talking about the mumps when she was writing Mumps Can Lead to Deafness. I mention in Growing Up Deaf Part 1 and Part 5 about the diagnosis and how I lost my hearing. But she gave me a historical aspect that I had to check.
I have a paper from my doctor back then that my dad was "trying to locate record of MMR." I don't think it was ever found.
According to the Measles Vaccine Questions and Answers page, the mumps vaccine wasn't available til 1967. Neither was the MMR vaccine til 1971.
Seems I wasn't vaccinated in time. I'll find out the story sometime, somehow.