The State Archives are in Jefferson City, which is a little more than an hour's drive from Warrenton. Warrenton is on I-70 an hour west of St. Louis. I am generally at the Historical Society in Warrenton on Fridays 10-4 if you want to see the original records. Warren County was formed from Montgomery in 1833, and Montgomery County's records burned twice, so I don't think you're going to find any records about them there. Local records is working on circuit court now, and I think I processed a land partition recently that mentioned the Caton-Carter family. I also know a Sparks descendant who goes to reunions in Odessa (near Kansas City). Feel free to contact me directly using by first initial and last name at yahoo.com.