Hi, I found a Pauline G. Averitt Born: 7 Dec 1902 Residence on File @ Social Security: Lebanon, Marion, KY Died: Aug 1990 Her social security number was assigned 1957-58 in Kentucky. Source: Social Security Death Index.
I know her birth date is off by a couple of years but it's worth looking for a copy of her obituary or death certificate.
Have you found her parents' obituaries? She might be mentioned in them.
I found T. Edward Averett in 1930 in Mayfield, Graves Co., KY. T. Edward Averett, widower, b. TN, 69, Buyer tobacco. Rest of household were roomers. Successful Searching!