In the mid 60's I drove my grandfather to a reunion at a small rural church located between Quanah and the Oklahoma State line. I found a picture of a building and above the door was a sign, "Riverdale Baptist Church." I believe this is a church where my grandfather may have served as pastor many years before. My grandfather was O.S. Brewer and he made his home in Mangum. He had lived in Eldorado prior to moving to Mangum. Can anyone help me to verify that there was a church in that area and if so the name of the church?