Finally got the 65 mark on my first game. It was the 4th generation. He was already a master around age 60. His wife passed when he was 62 so I stocked up on groceries and let him be for several hours. Came back to his having passed, but with the 65 goal notification.
Wait... when one spouse dies, don't you have to start the next generation? I have never been able to carry on with one spouse after the other has passed.
When the first person dies it takes you to the Next Generation screen, but you can cancel it and go back to your house to continue with the spouse who remains. I always go back to my lone spouse as I don't like shoving them out of the house before their time is up!
I wish we were allowed to have the grandparents in the house with the next generation.