| Name | Relationship with Steven Prater | Civil | Canon |
| Scarborough, E. R. | Husband of the great-grandmother | | |
| Schafer, Samuel Joseph | Husband of the 2nd cousin twice removed | | |
| Scharf, Earl Edward | 2nd cousin twice removed | VIII | 5 |
| Scharf, Esther Henrietta | 2nd cousin twice removed | VIII | 5 |
| Scharf, Phoebe | Wife of the 1st cousin 3 times removed | | |
| Scharf, Vera Margaret | 2nd cousin twice removed | VIII | 5 |
| Scharf, William | Husband of the 1st cousin 3 times removed | | |
| Schenectady, Donna | Wife of the half 2nd cousin | | |
| Schmidt, Lillie Elizabeth | Wife of the 1st cousin 3 times removed | | |
| Schmitz, Dave | Husband of the 1st cousin | | |
| Schwoch, Alfred | Husband of the 2nd cousin twice removed | | |
| Schwoch, Gilbert Carl | Husband of the 2nd cousin twice removed | | |
| Scott | Nephew | III | 2 |
| Scott, Belinda (Melinda) | Wife of the 1st cousin 6 times removed | | |
| Scudder, Marry | 8th great-grandmother | X | 10 |
| Scudder, Rebecca | 9th great-grandmother | XI | 11 |
| Selgensen, Sigfred | Husband of the 2nd cousin twice removed | | |
| Shandrow, Hazel Louise | Wife of the 3rd cousin 3 times removed | | |
| Sharp | Husband of the half 6th cousin | | |
| Sheridan, Devan Robert | Half 2nd cousin | VI | 3 |
| Sheridan, Michael Edward | Husband of the half 1st cousin once removed | | |
| Sheridan, Thomas Joseph | Half 2nd cousin | VI | 3 |
| Sheridan, Timothy Michael | Half 2nd cousin | VI | 3 |
| Shogren, Evelyn Ruth | Wife of the 2nd cousin twice removed | | |
| Sierzant, Jennifer Ann | Wife of the 5th cousin once removed | | |
| Simon, Elizabeth Zimdars | Wife of the 1st cousin 3 times removed | | |
| Simonsen, Andrew | 2nd cousin twice removed | VIII | 5 |
| Simonsen, Frederick Andrew | Husband of the 1st cousin 3 times removed | | |
| Simonsen, Hannah | 2nd cousin twice removed | VIII | 5 |
| Simonsen, James | 2nd cousin twice removed | VIII | 5 |
| Simonsen, Melvin Andrew James | 2nd cousin twice removed | VIII | 5 |
| Simonsen, Thusnelda Catherine | 2nd cousin twice removed | VIII | 5 |
| Sledge, Martha | Wife of the 6th great-granduncle | | |
| Sloan, Vernie | Wife of the uncle | | |
| Small, David | Husband of the 4th cousin twice removed | | |
| Small, Dominic Anthony | 5th cousin once removed | XIII | 7 |
| Smith, Agnes | Wife of the 5th great-granduncle | | |
| Smith, Agness | Wife of the 5th great-granduncle | | |
| Smith, Mary | Wife of the 7th great-grandfather | | |
| Smith, William Adrian | Husband of the 4th cousin twice removed | | |
| Snodgrass, Jane "Jenny" | Wife of the 1st cousin 6 times removed | | |
| Snodgrass, Rebecca | Wife of the 1st cousin 6 times removed | | |
| Sodorff, Sheldon | Husband of the grandaunt | | |
| Sontag, Charles Robert, Jr | Husband of the 2nd cousin twice removed | | |
| Soule, Eliza McCarthy | Wife of the 4th great-granduncle | | |
| Sprague, Elma | Wife of the 2nd cousin 4 times removed | | |
| Spruce, Calvin Holsert | Half 2nd great-granduncle | VI | 5 |
| Spruce, John Clinton | Half 2nd great-granduncle | VI | 5 |
| Spruce, John Clinton, Jr. | Husband of the 3rd great-grandmother | | |
| Spruce, Nancy Louisa | Half 2nd great-grandaunt | VI | 5 |