| Name | Relationship with Steven Prater | Civil | Canon |
|---|
| Lauer, Linda Lou | Wife of the half 1st cousin once removed | | |
| Law, Hudah | 4th great-grandmother | VI | 6 |
| Lawrence, Catherine Louise | Wife of the 2nd cousin twice removed | | |
| Lawrence, Drucilla | 4th great-grandmother | VI | 6 |
| Lazano, Brooke Angela | 5th cousin once removed | XIII | 7 |
| Lazard, Anthony C. Lee | 5th cousin once removed | XIII | 7 |
| Lazard, Child | 5th cousin once removed | XIII | 7 |
| Lazard, Frank Stanley | Husband of the 4th cousin twice removed | | |
| Lazard, Trandan M. Allen | 5th cousin once removed | XIII | 7 |
| Lee, Hettie | Wife of the 2nd cousin 5 times removed | | |
| Leggitt, Michael Rayburn | Ex-husband of the sister | | |
| Leggitt, Steven Lee | Nephew | III | 2 |
| Leggitt, Tyler Ray | Grandnephew | IV | 3 |
| Lehmann, John George | Husband of the 1st cousin 3 times removed | | |
| Leonard, Melinda K. | Wife of the half 2nd great-granduncle | | |
| Lesley, Malinda | Wife of the 1st cousin 5 times removed | | |
| Linda | Wife of the 5th cousin twice removed | | |
| Little, A. L. | Wife of the 1st cousin 5 times removed | | |
| Little, Adger | 2nd cousin 4 times removed | X | 7 |
| Little, Georgia | 2nd cousin 4 times removed | X | 7 |
| Little, Tabor H. | Husband of the 1st cousin 5 times removed | | |
| Little, Tabor Louise | 2nd cousin 4 times removed | X | 7 |
| Longmire, Betty | Half 3rd cousin 3 times removed | XI | 7 |
| Longmire, William | Husband of the half 2nd cousin 4 times removed | | |
| Looney, James Allen | Husband of the 4th cousin 3 times removed | | |
| Lorance, S. U. | Husband of the great-grandaunt | | |
| Louise | Wife of the 4th cousin 3 times removed | | |
| Love, James D. | Husband of the 1st cousin 6 times removed | | |
| Lozano, Brandon Aaron | 5th cousin once removed | XIII | 7 |
| Lozano, Child | 5th cousin once removed | XIII | 7 |
| Lozano, James | Husband of the 4th cousin twice removed | | |
| Luce | 14th great-grandmother | XVI | 16 |
| Lucille | Wife of the half 3rd cousin 3 times removed | | |
| Lucy | Wife of the half 3rd cousin 3 times removed | | |
| Lueptow, Gustave Adolph | Husband of the 1st cousin 3 times removed | | |
| Lueptow, Ida | Wife of the 1st cousin 3 times removed | | |
| Lueptow, Merton Wayne | 2nd cousin twice removed | VIII | 5 |
| Lusk, Iasbell Katheryn | Wife of the 2nd cousin twice removed | | |
| Lyons, J. J. | Husband of the half 2nd cousin 4 times removed | | |
| MacArthur, Annie Elgie | Wife of the 2nd cousin twice removed | | |
| Mace, Albert Raymond | Husband of the 1st cousin 5 times removed | | |
| Mace, Cynthia Ann | 2nd cousin 4 times removed | X | 7 |
| Mace, Kate Adelina | 2nd cousin 4 times removed | X | 7 |
| Mace, Mary (Mollie) Helen | Wife of the 1st cousin 5 times removed | | |
| Mackley, Froye Adele | Wife of the great-granduncle | | |
| Macy, Margaret | Wife of the 5th great-granduncle | | |
| Maddeaux, Heather Joann | Half 6th cousin once removed | XV | 8 |
| Maddeaux, John David | Husband of the half 6th cousin | | |
| Malet, Hugh | 13th great-grandfather | XV | 15 |
| Malinda | Wife of the 3rd great-granduncle | | |
