| Name | Birth date | Relationship with Robert Frei |
| Cable, Sarah | | 7th great-grandaunt of the wife |
| Cable, Sarah | 10 Jan 1748/49 | 5th great-grandmother of the wife |
| Cailla, Marie Anne | | 6th great-grandmother of the wife |
| Calanca, Melissa Lee | Private | 2nd cousin once removed |
| Calanca, Neil Leslie | Private | Husband of the 2nd cousin |
| Calanca, Neil Leslie Jr. | Private | 2nd cousin once removed |
| Callaway, Marcia | Private | Wife of the 2nd cousin |
| Campau | | 1st cousin twice removed of the wife |
| Campau | | 1st cousin twice removed of the wife |
| Campau | | 1st cousin twice removed of the wife |
| Campau, Albert | | 1st cousin twice removed of the wife |
| Campau, Clyde | | 1st cousin twice removed of the wife |
| Campau, Edward | | 1st cousin twice removed of the wife |
| Campau, James | | 1st cousin twice removed of the wife |
| Campbell, Berneda Edna | Private | 3rd cousin once removed of the wife |
| Campbell, Betty Mae | Private | 3rd cousin once removed of the wife |
| Campbell, Dale Lavern | Private | 3rd cousin once removed of the wife |
| Campbell, Jackie Lee | Private | 3rd cousin once removed of the wife |
| Campbell, Lester William | Private | 3rd cousin once removed of the wife |
| Campbell, Living | Private | 3rd cousin once removed of the wife |
| Campbell, Mary Elaine | Private | 3rd cousin once removed of the wife |
| Cannum, Rorie Ann | Private | Wife of the 1st cousin |
| Capeless, Mary | Abt. 1831 | 3rd great-grandmother |
| Capet, Hugh | Abt. 895 | 31st great-grandfather |
| Capet, Hugh | Abt. 938 | 30th great-grandfather |
| Carlson, Alvin Oliver | Private | 1st cousin once removed of the wife |
| Carlson, Anna Aleada | 17 Apr 1909 | Grandaunt of the wife |
| Carlson, Anton Wayne | Private | 1st cousin once removed of the wife |
| Carlson, Beulah Marie | Private | 1st cousin once removed of the wife |
| Carlson, Brenda Sue | Private | 1st cousin once removed of the wife |
| Carlson, Carl Johan (Charlie) | 30 Sep 1906 | Granduncle of the wife |
| Carlson, Carl Ludvig | 02 Oct 1868 | Great-grandaunt of the wife |
| Carlson, Christopher Jon | Private | 2nd cousin of the wife |
| Carlson, Dale Allen | Private | 2nd cousin of the wife |
| Carlson, Della Rosederina | 22 Dec 1903 | Grandaunt of the wife |
| Carlson, Deuane LaVerne | 07 Jun 1918 | Granduncle of the wife |
| Carlson, Eldon Nils | Private | 1st cousin once removed of the wife |
| Carlson, Ellen Henrietta | 22 Aug 1899 | Grandaunt of the wife |
| Carlson, Elvira Marie | 29 Dec 1892 | Grandaunt of the wife |
| Carlson, Freda Christena | Private | 1st cousin once removed of the wife |
| Carlson, George Anton (Tony) | 12 Apr 1911 | Granduncle of the wife |
| Carlson, Glenda Lee | 02 Dec 1946 | 1st cousin once removed of the wife |
| Carlson, Gregory Wayne | Private | 2nd cousin of the wife |
| Carlson, Heath | Private | 2nd cousin of the wife |
| Carlson, Hulda (Hilda) Elizabeth | 17 Dec 1894 | Grandmother of the wife |
| Carlson, Ingeborg | 09 Aug 1891 | Grandaunt of the wife |
| Carlson, Jeffrey Neil | Private | 2nd cousin of the wife |
| Carlson, Joanne Mary | Private | 1st cousin once removed of the wife |
| Carlson, John Walter | 01 Nov 1907 | Granduncle of the wife |
| Carlson, Judy | Abt. Nov 1941 | 1st cousin once removed of the wife |