USGenWeb Free Census Project, Notices, Key to 1820 Census Columns
| Key to 1820 Census Columns: | |
| Abbreviation | Description |
| LINE | Line Number |
| Firstname | First Name |
| Lastname | Last Name |
| Free White Males | (Age Ranges from top number to bottom number.) |
| Free White Females | (Age Ranges from top number to bottom number.) |
| Foreign Not Naturalized | |
| Works in Agriculture | |
| Works in Commerce | |
| Works in Manufacturing | |
| Male Slaves | (Age Ranges from top number to bottom number.) |
| Female Slaves | (Age Ranges from top number to bottom number.) |
| Free Male Colored Persons | (Age Ranges from top number to bottom number.) |
| Free Female Colored Persons | (Age Ranges from top number to bottom number.) |
| All Other Persons | |
| Remarks | Transcriber's Remarks |
