Margaret Campbell was born in Scotland to Finlay Campbell (c1485-1565) and died 1537 Scotland of unspecified causes. She married John MacDowall, 9th of Garthland (1507-1547) .
Children
| Name | Birth | Death | Joined with |
| Uchtred MacDowall, 10th of Garthland (1546-1593) | 1546 Galloway, Scotland | 1593 France | Margaret Kennedy (1560-1578) Margaret Stewart (-aft1578) |
| Gilbert MacDowall | |||
| Helen MacDowall | |||
| Florence MacDowall | |||
Siblings
| Name | Birth | Death | Joined with |
| Janet Campbell | |||
| Margaret Campbell (-1537) | Scotland | 1537 Scotland | John MacDowall, 9th of Garthland (1507-1547) |