| Name | Relationship with Michael Brennan | Civil | Canon |
| Forbes, Austin | 4th great-grandson | VI | 6 |
| Forbes, Austin John | Great-grandson | III | 3 |
| Forbes, Daniel | 3rd great-grandson | V | 5 |
| Forbes, Daniel Joseph | 2nd great-grandson | IV | 4 |
| Forbes, David | 3rd great-grandson | V | 5 |
| Forbes, Harry Emanuel | Great-grandson | III | 3 |
| Forbes, Henry | Husband of the granddaughter | | |
| Forbes, John Joseph | 2nd great-grandson | IV | 4 |
| Forbes, Jon Austin | 4th great-grandson | VI | 6 |
| Forbes, Katherine Ann | 3rd great-granddaughter | V | 5 |
| Forbes, Kathleen Angela | Great-granddaughter | III | 3 |
| Forbes, Kelly Lynne | 3rd great-granddaughter | V | 5 |
| Forbes, Lillian Theresa | Great-granddaughter | III | 3 |
| Forbes, Marion Mary | Great-granddaughter | III | 3 |
| Forbes, Mary Catherine | 2nd great-granddaughter | IV | 4 |
| Forbes, Michael Henry | 2nd great-grandson | IV | 4 |
| Forbes, Patrick John | 3rd great-grandson | V | 5 |
| Forbes, Theresa Ann | 2nd great-granddaughter | IV | 4 |
| Forbes, Vincent | Great-grandson | III | 3 |
| Fynn, Shannon | Ex-wife of the 3rd great-grandson | | |
| Gibeau, Charlene | 3rd great-granddaughter | V | 5 |
| Gibeau, Kevin | 3rd great-grandson | V | 5 |
| Gibeau, Kristin | 4th great-granddaughter | VI | 6 |
| Gibeau, Lyndia | 3rd great-granddaughter | V | 5 |
| Gibeau, Norman | Husband of the 2nd great-granddaughter | | |
| Gibson, Pauline | Wife of the 2nd great-grandson | | |
| Giles, Debra Ann | Wife of the 2nd great-grandson | | |
| Gloria | Wife of the great-grandson | | |
| Greenwood, Victoria | Wife of the 2nd great-grandson | | |
| Hanke, Sharon | Wife of the 2nd great-grandson | | |
| Hansen, Stein | Husband of the 2nd great-granddaughter | | |
| Herron, Bradley Kenneth | 4th great-grandson | VI | 6 |
| Herron, Daniel | 4th great-grandson | VI | 6 |
| Herron, Kenneth | Husband of the 3rd great-granddaughter | | |
| Heshka, Sandra Shirley | Wife of the 2nd great-grandson | | |
| Hutt, Jason | 3rd great-grandson | V | 5 |
| Hutt, Stuart | Husband of the 2nd great-granddaughter | | |
| Joyce | Wife of the 3rd great-grandson | | |
| Joyce, Bradley Charles | 3rd great-grandson | V | 5 |
| Joyce, Erin Kathleen | 3rd great-granddaughter | V | 5 |
| Joyce, Ian J. | Husband of the 2nd great-granddaughter | | |
| Kavanagh, Celsus | Husband of the great-granddaughter | | |
| Kavanagh, Evelyn Margaret | Wife of the great-grandson | | |
| Kavanagh, Kevin Walter Joseph | 2nd great-grandson | IV | 4 |
| Kavanagh, Marilyn Theresa | 2nd great-granddaughter | IV | 4 |
| Kavanagh, Marion Angela | 2nd great-granddaughter | IV | 4 |
| Kavanagh, Timothy Celsus | 3rd great-grandson | V | 5 |
| Kay, Rita | Partner of the 2nd great-grandson | | |
| Kelly, Brian Patrick | Husband of the 2nd great-granddaughter | | |
| Kelly, Rose | Wife of the grandson | | |