Looking for Information for Margaret a Blackmore

Looking for information for Margaret A Blackmore b ABT 1830 in Sumner Co., TN. d BET 1855-1865. She m to James Alexander Hodges b 7 Feb 1828 in TN.
Who was the parents of Margaret A blackmore? Did she have siblings and what are their names?
She was a gt gt grandmother to my husband. finding this information is so very important to us.
Thanking you in advance
maxine.davies06@hotmail.com