| Name | Birth date | Relationship with Michael McGrath |
|---|
| Cantlin, Joe | | 1st cousin 3 times removed |
| Cantlin, John | | Husband of the 2nd great-grandaunt |
| Cantlin, John | | 1st cousin 3 times removed |
| Carrol, Bruce | | Husband of the 3rd cousin once removed |
| Carroll, Virginia Garnett | | Grandmother of the wife |
| Cass | 7/2/1905 | 1st cousin twice removed |
| Caughlin, Rita Katherine | 6/8/1919 | 2nd cousin twice removed |
| Cauzillo, Therese Ann | | Wife of the 3rd cousin once removed |
| Charanza, Deborah Lynn | 2/10/1952 | Wife of the 3rd cousin |
| Chatman, Natalie Marie | 3/26/1985 | 3rd cousin once removed |
| Chatman, Norman David | 7/19/1952 | Husband of the 3rd cousin |
| Chatman, Norman David | 4/13/1981 | 3rd cousin once removed |
| Clark, Edward | | Husband of the great-grandaunt |
| Clark, Michael | | 2nd cousin once removed |
| Clark, Sherry | | 2nd cousin once removed |
| Clark, William | | 1st cousin twice removed |
| Clawson, Agatha Ann | 9/11/1949 | Wife of the 3rd cousin |
| Cody, Annie | 1901 | 2nd cousin twice removed |
| Cody, Catherine | 1908 | 2nd cousin twice removed |
| Cody, Grace Alice | 1910 | 2nd cousin twice removed |
| Cody, Jane | 7/6/1900 | 2nd cousin twice removed |
| Cody, John William | 2/22/1914 | 2nd cousin twice removed |
| Cody, Mary Josephine | 1904 | 2nd cousin twice removed |
| Cody, William | | Husband of the 1st cousin 3 times removed |
| Cole, ? | | Husband of the 1st cousin once removed |
| Collins, Cyril John | 1/1/1947 | 3rd cousin once removed |
| Collins, Eugene Frederick | 4/10/1942 | 3rd cousin once removed |
| Collins, Frederick John | 9/30/1914 | Husband of the 2nd cousin twice removed |
| Collins, Jennifer Anne | 11/26/1969 | 4th cousin |
| Collins, Joanne Mary | 7/8/1949 | 3rd cousin once removed |
| Collins, John David | 5/2/1967 | 4th cousin |
| Collins, Lawrence Patrick | 2/4/1953 | 3rd cousin once removed |
| Collins, Matthew Euegene | 2/26/1973 | 4th cousin |
| Collins, Sarah Fleurette | 6/26/1977 | 4th cousin |
| Conley, Kathryn Sue | 6/19/1947 | Mother-in-law |
| Conners, Anne | | 2nd cousin twice removed |
| Conners, James | | Husband of the 1st cousin 3 times removed |
| Conners, James | | 2nd cousin twice removed |
| Conners, Joanne | | 3rd cousin once removed |
| Conners, John | | 2nd cousin twice removed |
| Conners, Margaret | | 2nd cousin twice removed |
| Conners, Mary | | 2nd cousin twice removed |
| Conners, Susan | | 3rd cousin once removed |
| Coughlin, Anne Marie | 10/10/1883 | Wife of the 1st cousin 3 times removed |
| Coughlin, Camilla May | 10/27/1953 | 3rd cousin once removed |
| Coughlin, Dympna Mary | 4/11/1964 | 3rd cousin once removed |
| Coughlin, Francis Martin | 10/29/1954 | 3rd cousin once removed |
| Coughlin, John Anthony | 5/11/1958 | 3rd cousin once removed |
| Coughlin, John Joseph | 5/1/1922 | 2nd cousin twice removed |
| Coughlin, Joseph Michael | 5/16/1957 | 3rd cousin once removed |
