Looking for Information for Margaret a Blackmore

Margaret A Blackmore b ABT 1830 d BET 1855-1865. 11 Oct 1849 she married James Alexander Hodges b 7 Feb 1828. S/O William Hodges & Sarah West. It seems this family were located mostly Sumner Co., TN. Franklin Co., VA.
Who are the parents of Margaret Blackmore? did she have siblings? What would their names be?
Any help with this person would be so very much appreciated, thanks in advance.
Maxine
maxine.davies06@hotmail.com