My dad would have turned 100 years old tomorrow. Out of respect for him, and because my siblings look for any excuse to get together, we are all assembling at my sister’s house in St. Paul for a birthday party.

There’s a total of seven Radosevich siblings, plus all my cousins and their families, so there will be quite a few relatives in her backyard. It will be noisy.

A few years before Dad passed away, my parents asked me to help them with their health care directives, sometimes called “living wills.”

Now, I’d drafted dozens of these while working for David Lindgren at the old Ne...