She became a park ranger at 85 to tell her story of segregation. Now 100, she's the oldest active ranger.

When asked how it feels to be 100 years old, Betty Reid Soskin gave a subtle shrug, smiled and said: “The same way I felt at 99.”.

source https://www.washingtonpost.com/lifestyle/2021/09/24/betty-soskin-park-ranger-100/