Ella Mae Sharp (née O'Brien; May 1, 1896 – May 21, 1990) was the mother of Robert E. Sharp, making her the paternal grandmother of Tina, and great-grandmother of Michael, Charles, Kim, and Jennifer. She was born in Charleston, SC. She lived to the age of 94, making her the second longest lived of Angry Grandpa's deceased relatives, after Linda.

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