I tried finding records on my great grandma to see if i could find my the father of my grandpa but I cannot find any marriage records on her, but did find a 1930 census from Triadelphia, Logan, West Virginia. I am not sure if this is even her. I could really use some help with this.

My grandpa,John N Gilliam,
Birth : 24 Sep 1928 in Olive Hill, Kentucky, USA Death: 12 Sep 1999 in Southington, Ohio, USA

My Great Grandma, Mollie E Crockett,
Birth:19 Mar 1905 in Kentucky, United States Death: 4 Mar 1989 in Southington, Trumbull, Ohio, USA

Thanks,
Michelle Gilliam