Thank you for your recent inquiry. You may find the answer you seek by searching the National Archives Census records, more information is available at https://www.archives.gov/research/census. You may also find information about Mr. Trego at Family Search, accessible at https://familysearch.org/. Records specific to your inquiry are likely in the custody of the Textual Archives Division of the National Archives, which may be contacted at National Archives at Washington, DC - Textual Reference (RDT1), by phone at 202-357-5385 or via email at Archives1reference@nara.gov.
