Who is the little old lady with the hat sitting in dozens of Perry Mason trials?

Here is a deep mystery that even Paul Drake can't solve.

Perry Mason The Case of the Demure Defendant (TV Episode 1958) - IMDb

I'm watching Perry Mason, and I keep noticing this same little old lady in the courtroom audience. She's in dozens of episodes. : r/TVDetails

Who is the little old lady with the hat sitting in dozens of Perry Mason trials?

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