| Father |
| McDougall, Archibald | April 1, 1830 | November 3, 1916
| Mother |
| Mellish, Catherine Douglas | August 17, 1840 | February 10, 1931
| Brother |
McDougall, Alexander McKay |
May 8, 1859 |
November 8, 1955 |
|
| Brother |
McDougall, John |
1860 |
1873 |
|
| Brother |
McDougall, Allan Hugh |
October 14, 1863 |
before 1941 |
|
| Brother |
McDougall, Albert Samuel |
September 25, 1865 |
1941 |
|
| Brother |
McDougall, Robert Lewis B. |
February 1867 |
|
|
| Sister |
McDougall, Harriet Ellis |
October 1869 |
1944 |
|
| |
McDougall, Annie Alice |
1874 |
1960 |
|
| Sister |
McDougall, Damaris Maud |
1879 |
|
|
| Sister |
McDougall, Margaret Florence |
August 24, 1876 |
1954 |
|