Here is some information from ancestry:
"Polly" Allison b. ca 1800-02 was a daughter of Richard Allison who married Henry Allison my maternal Great Grandfather, b. ca 1790. His parents and possible relationship unknown at this point. They settled in the Swannanoa Gap of Buncombe County, NC. It is believed they raised the following twelve children:
Thomas; Ephiram Noah; Jefferson W.; Elizabeth who married a York; Casandra "Cassie" marrying William Padgett; John Henry, first married Elizabeth Rebecca Glendown, second Sarah Jane Freeman; Benjamin married Rebecca Biddix sister to my paternal Grandmother Safronia Biddix. [John Henry and Benjamin were twins] Richard; Riley; Rebecca who married a Baker; Virginia "Jennie" married Bryson McGlamory; Lydia married James "Jim' Cheesman who is said to have owned the property where the present Ridgecrest Baptist Assembly is located. [Virginia and Lydia were also twins]. In my ancestral research nothing more at this time is known. - Charles David Biddex.
Page: 134 Henry Allison and Mary "Polly" Allison 204
1791 -1979 *Old Buncombe County Genealogial Society Buncombe County, North Carolina*
The Heritage Of Old Buncombe County Volume I -1981