I found the following for Brought Hilton on www.familysearch.org
it is a free site, you just need to register to search or access the following. There may be more.
Brought Hilton 1870 census.....https://www.familysearch.org/ark:/61903/1:1:M8RD-8XZ
Brought Hilton 1880 census......https://www.familysearch.org/ark:/61903/1:1:M6S7-2HY
Brought Hilton 1910 census......https://www.familysearch.org/ark:/61903/1:1:M5DQ-VKG
Death Certificate of son David......https://www.familysearch.org/ark:/61903/1:1:FG32-WF5
Here are a couple more sites you may want to try. https://www.sciway.net/afam/slavery/indexs.html
Dear Mr. Hilton,
Thank you for posting your request on History Hub!
Since Brought Hilton was born in 1841, he may be listed beginning with the 1870 Census. We searched the National Archives Catalog and located the Population Schedules for the 1870 Census;(M593) in the Records of the Bureau of the Census (Record Group 29) that may include the name you seek. Some of the schedules have been digitized in part or whole (for 1940 only). For access to the non-digitized schedules, please contact the National Archives at Washington, DC - Textual Reference (RDT1) via email at email@example.com. The 1870 Census may list names and ages for family members residing with him that you may use for further research.
Due to the COVID-19 pandemic and pursuant to guidance received from the Office of Management and Budget (OMB), NARA has adjusted its normal operations to balance the need of completing its mission-critical work while also adhering to the recommended social distancing for the safety of NARA staff. As a result of this re-prioritization of activities, you may experience a delay in receiving an initial acknowledgement as well as a substantive response to your reference request from RDT1. We apologize for this inconvenience and appreciate your understanding and patience.
M593 has been digitized by Ancestry. In response to the COVID-19 pandemic, the National Archives has partnered with Ancestry to make the vast majority of their NARA-digitized holdings freely available to the public. Anyone with Internet access may create an account, access NARA records, and use other Ancestry resources, such as their educational offerings and family tree-maker application. For more information see Ancestry’s announcement -- “Free At-Home Education Resources From Ancestry® and Access to Nearly 500M National Archives Records”.
For information about the 1870 Census, see the Census Bureau technical documentation and questionnaires.
We also suggest that you review the FamilySearch Research wiki for Clarendon County South Carolina genealogy as well as the African American Resources for South Carolina. In addition, the document Federal Records that Help Identify Former Slaves and Slave Owners may be helpful.
The South Carolina Department of Archives and History has resources that you may search for African American genealogy including, but not limited to, records of slave census schedules, federal and state census, 1868 voter registration, free negro capitation tax books, manumission, South Carolina Land Commission, wills, and military records.
We hope this is helpful. Best of luck with your family research!