Margaret Kennedy was born circa 1560 in Scotland to Hugh Kennedy, 2nd of Girvan Mains (-aft1568) and Janet Stewart (c1515-1580) and died 1578 Scotland of unspecified causes. She married Uchtred MacDowall, 10th of Garthland (1546-1593) .
Children
| Name | Birth | Death | Joined with |
| Uchtred MacDowall, 11th of Garthland (-1600) | |||
| Catherine MacDowall | |||
| Thomas MacDowall | |||
| John McDowell (c1570-aft1635) | 1570 Galloway, Scotland | 1635 Glenco, Antrim, Ulster, Nothern Ireland | Mary Wylie (c1580-1631) |
Siblings
| Name | Birth | Death | Joined with |
| Gilbert Kennedy (-aft1599) | |||
| Elizabeth Kennedy (c1542-) | 1558 Scotland | 1572 | Patrick Waus (-1597) |
| Margaret Kennedy (1560-1578) | 1560 Scotland | 1578 Scotland | Uchtred MacDowall, 10th of Garthland (1546-1593) |
| Barbara Kennedy | |||
| Helen Kennedy | |||