| Name | Relationship with John Simplot | Civil | Canon |
|---|
| Simplot, Rachel | Great-granddaughter | III | 3 |
| Simplot, Rachel | Granddaughter | II | 2 |
| Simplot, Randy | 4th great-grandson | VI | 6 |
| Simplot, Randy | 4th great-grandson | VI | 6 |
| Simplot, Richard | 2nd great-grandson | IV | 4 |
| Simplot, Ronald | 4th great-grandson | VI | 6 |
| Simplot, Rosaleta Mae | 3rd great-granddaughter | V | 5 |
| Simplot, Roy Albert | 2nd great-grandson | IV | 4 |
| Simplot, Roy Albert | 4th great-grandson | VI | 6 |
| Simplot, Ryan James | 5th great-grandson | VII | 7 |
| Simplot, Sandra | 3rd great-granddaughter | V | 5 |
| Simplot, Scott Arthur | 4th great-grandson | VI | 6 |
| Simplot, Shane Wayne | 4th great-grandson | VI | 6 |
| Simplot, Sharon Ann | 4th great-granddaughter | VI | 6 |
| Simplot, Shelly | 4th great-granddaughter | VI | 6 |
| Simplot, Shiloh | 4th great-grandson | VI | 6 |
| Simplot, Steven | 4th great-grandson | VI | 6 |
| Simplot, Susan | Great-granddaughter | III | 3 |
| Simplot, Tammy | 4th great-granddaughter | VI | 6 |
| Simplot, Theresa | 3rd great-granddaughter | V | 5 |
| Simplot, Thomas | 2nd great-grandson | IV | 4 |
| Simplot, Tom | 4th great-grandson | VI | 6 |
| Simplot, Unamed | 2nd great-grandchild | IV | 4 |
| Simplot, Unknown | 4th great-grandchild | VI | 6 |
| Simplot, Vernon Leroy | 3rd great-grandson | V | 5 |
| Simplot, Virgil | 3rd great-grandson | V | 5 |
| Simplot, Walter | Grandson | II | 2 |
| Simplot, Warren | Great-grandson | III | 3 |
| Simplot, Warren Richard | 2nd great-grandson | IV | 4 |
| Simplot, Wayne Warren | 3rd great-grandson | V | 5 |
| Simplot, Willard | 2nd great-grandson | IV | 4 |
| Simplot, William C. | Grandson | II | 2 |
| Simplot, Wynne | 4th great-granddaughter | VI | 6 |
| Simpson, Carrie | Wife of the 3rd great-grandson | | |
| spouse, Unknown | Wife of the 3rd great-grandson | | |
| Stenulson, Betty | Wife of the 3rd great-grandson | | |
| stillborn., Baby Boy Simplot- Baby was | Great-grandson | III | 3 |
| Stoker, Alice | Wife of the 2nd great-grandson | | |
| Sundell, Donald | Husband of the 3rd great-granddaughter | | |
| Sundell, Donald, Jr. | 4th great-grandson | VI | 6 |
| Suzann | Wife of the 4th great-grandson | | |
| Taylor, Ida D. | Wife of the great-grandson | | |
| Taylor, Saline Jeanette | Wife of the great-grandson | | |
| Tedd, Claire | Wife of the 3rd great-grandson | | |
| Thayer, Frank | Grandson | II | 2 |
| Thayer, George | Son-in-law | | |
| Tingelstad, Phyllis | Wife of the 3rd great-grandson | | |
| VanOrden, Alice | Granddaughter | II | 2 |
| VanOrden, George | Grandson | II | 2 |
| VanOrden, Samuel | Son-in-law | | |
