Crow from Virginia to Vinton Ohio

I am researching my 5th Great grandma Lucretia Crow. She was born around 1803 in Virginia & died 1888 in Vinton,Ohio.She married John Dearth in 1829 Guernsey County, Ohio. I know nothing else about her before her marriage to John.I dont know who her parents were.Im looking to find out who her parents were?