He's 92 today.

From Wikipedia:

He is one of the oldest surviving Munchkin-actors from The Wizard of Oz, and is now the only surviving cast member with any significant dialogue in the film.

Raabe graduated from the University of Wisconsin-Madison in 1937. He was the Coroner in The Wizard of Oz in 1939, with his only lines being:

As coroner, I must aver
I thoroughly examined her
And she's not only merely dead
She's really, most sincerely dead!

These lines, like most of those delivered by the Munchkins, were dubbed over with the sped-up voices of other performers. In addition to his role in the film, Raabe worked for many decades as a spokesman for Oscar Mayer.