| Father |
| McDougall, Peter Warren | April 7, 1827 | May 30, 1914
| Mother |
| Ellis Warwell Lerwell, Harriet | May 14, 1835 | September 3, 1922
| Brother |
McDougall, Allen Fraser Allan |
October 7, 1855 |
June 1, 1938 |
|
| Brother |
McDougall, Bruce Cornelius |
February 3, 1857 |
November 16, 1910 |
|
| Brother |
McDougall, William Douglas |
August 6, 1858 |
before 1921 |
|
| Sister |
McDougall, Mabel Hannah |
August 1861 |
October 22, 1947 |
|
| Sister |
McDougall, Mary Jane Jennie |
about 1862 |
before 1914 |
|
| Brother |
McDougall, John Andrew |
1863 |
October 22, 1941 |
|
| Sister |
McDougall, Ellen Nellie |
February 2, 1864 |
August 28, 1931 |
|
| Sister |
McDougall, Elizabeth Marion |
1867 |
1945 |
|
| Brother |
McDougall, Alexander D Mack |
November 9, 1869 |
1940 |
|
| |
McDougall, James H |
March 1871 |
before 1881 |
|
| Brother |
McDougall, Willis |
March 9, 1872 |
December 28, 1947 |
|
| Brother |
McDougall, James Nelson |
1875 |
before 1964 |
|
| Brother |
McDougall, Bismark |
January 1, 1878 |
October 2, 1926 |
|