Mary Ross 1837 -
m: Findlay Pettigrew 1829 - 1881
|---- Findlay Pettigrew 1860 - 1937
| m: Christina Donaldson 1861 - 1929
| \---- Findlay Pettigrew
| m: Winifred Emily Lohmann 1904 - 1972
| |---- Joan Gwendoline Pettigrew
| | m: George Adam Williamson
| | \---- Virginia Williamson
| | m: Andrew Preece
| | |---- Rebecca Preece
| | \---- Isaac Preece
| \---- David Pettigrew
| m: Jane Metcalf
| |---- Tom Pettigrew
| | m: Roslyn Mitchell
| | |---- Fergal James Pettigrew
| | \---- Partrick John Pettigrew
| \---- Jon Pettigrew
| m: Isabella McCulloch 1860 -
|---- William Pettigrew 1863 -
|---- Thomas Pettigrew 1865 -
|---- Janet Pettigrew 1867 -
|---- James Pettigrew 1871 -
|---- Mary Pettigrew 1873 -
|---- Margaret Pettigrew 1875 -
|---- John Pettigrew 1878 -
\---- Robert Pettigrew 1881 -