| Father |
| Gillis, John | June 8, 1817 | 1890
| Mother |
| McArthur, Margaret | July 20, 1818 | October 11, 1907
| Sister |
Gillis, Christianna Christy |
June 17, 1846 |
May 4, 1920 |
|
| Sister |
Gillis, Ann |
August 15, 1846 |
May 27, 1916 |
|
| Sister |
Gillis, Elizabeth |
about 1850 |
before 1920 |
|
| Brother |
Gillis, Alexander |
April 1850 |
July 31, 1919 |
|
| Brother |
Gillis, Michael |
December 25, 1850 |
October 20, 1936 |
|
| Sister |
Gillis, Mary |
April 14, 1855 |
before 1940 |
|
| Sister |
Gillis, Catherine Eleanor Katie |
September 28, 1856 |
1942 |
|
| Brother |
Gillis, George |
1860 |
|
|
| |
Gillis, John William |
|
|
|
| Brother |
Gillis, Alexander (2) |
about 1869 |
before 1920 |
|