| Code: | D/Lo/C |
|---|---|
| Entry Text: | estate correspondence of the Marquess of Londonderry, including relating to Seaham Harbour management notably 154, misc. letters, 1826-53, including orders concerning the entry of screw steamers to Seaham Harbour, 1853; 163, correspondence of Rich |
| Date Range: | 1826 to 1864 |
| Keywords: | ships development transport trains |
| Location: | Durham County Record Office |