A few examples:
- pilot in WW II China
- bush pilot Alaska
- FAA employee
- amateur thespian
- city council member
- consultant all around the world on various topics
- chair of the Alaska oil spill commission
- member of the Arctic Council
And he's still getting new stamps in his passport and volunteering full time in his 80s.
He's a walking encyclopedia about, well, everything. You mention any topic, any country, and Walt will explain it in detail and tell a tale of when he was there.
Walt was asked to open the envelope and announce the winner. You don't see Walt at a loss for words often. But he was clearly surprised when he saw the name.