Jane, Hey. The index you're probably using doesn't include SC. Ancestry.com's index you get to through the census images choice is only a partial index which does not include SC. Try the database: South Carolina Census, 1790-1890. I got 52 "hits" on Gillespie w/o specifying any county. Feel free to e-mail me privately if you need help navigating Ancestry.com to find this database. I had the exact same problem for Georgia census searches until I realized there was more than one index available through my subscription. Best of luck! Judy