Plot 321 is part of the following land areas:
| 1598 | Terrier to accompany Map of Earls Colne and Colne Priory Manors | 44600542 44600548 44600636 44600642 |
| Saturday 24 March 1604 | Harlakenden Account Book | 22600954 |
| Friday 19 June 1607 | Harlakenden Account Book | 22600010 |
| Saturday 13 July 1616 | Harlakenden Account Book | 22701609 |
| Thursday 3 February 1743 | Maps | 90100020 |
| 1806 | Maps | 90200005 |
| 1838 | Earls Colne Tithe Award | 90000015 |