| Name: | JOHN & MARY |
| Launched: | |
| Completed: | 1857 |
| Builder: | Johnathan Robson, Blackwall, Gateshead |
| Yard Number: | |
| Dimensions: | 44grt, 11nrt, 70.9 x 14.0 x 7.4ft; (1870: 44grt, 3nrt) |
| Engines: | 20nhp |
| Engines By: | |
| Propulsion: | Paddle |
| Construction: | Wood |
| Reg Number: | 19382 |
| History: | |
| 1857 | Messrs Hopper; registered at Newcastle |
| 1858 | J & J Hopper, Newcastle |
| 1862 | J Hopper snr, Newcastle |
| 1864 | James Carswell, Greenock |
| 1866 | John Carswell et al, Greenock |
| by 1867 | Registered at Greenock |
| 1874 | Andrew C Simpson, Greenock |
| No further history known | |
| Comments: | Still listed in MNL 1885 |