Caldwell County, KYGenweb Project a collection of online resources for genealogy researchers
Caldwell Co. Genealogy Forum read and post messages about your ancestors for this county
Caldwell County Surnames
Caldwell Co. Deliquent Tax List 1823
Caldwell Co. 1825 Deliquent Tax List
Census-Online.com - census transcriptions for  Caldwell Co.
Fallen Kentucky Soldiers in WWI - Caldwell County
The Tombstone Transcription Project - cemeteries for Caldwell Co. KY
US GenWeb Archives for Caldwell County cemeteries, newspapers, wills, military rosters etc recorded online
World War II Honor List of Dead and Missing Personnel, Caldwell County

Additional Resources

Kentucky Obituary Search enter your ancestor's name to search the world's largest newspaper obituary archive; over 3 Billion newspaper articles
Kentucky Birth Records
Kentucky Marriage Records
Kentucky Divorce Records
Kentucky Death Records