| Name | Relationship with Wendy Libby | Civil | Canon |
| Ingersoll, Rebecca Jane | 7th cousin 3 times removed | XIX | 11 |
| Ingersoll, Rebecca Wass | 4th cousin 5 times removed | XV | 10 |
| Ingersoll, Rebeckah | 3rd cousin 6 times removed | XIV | 10 |
| Ingersoll, Richard | 9th great-grandfather | XI | 11 |
| Ingersoll, Richard | 2nd cousin 7 times removed | XIII | 10 |
| Ingersoll, Richard | 2nd cousin 8 times removed | XIV | 11 |
| Ingersoll, Richard | 1st cousin 9 times removed | XIII | 11 |
| Ingersoll, Richard | 3rd cousin 7 times removed | XV | 11 |
| Ingersoll, Richard | 3rd cousin 6 times removed | XIV | 10 |
| Ingersoll, Richard | 4th cousin 6 times removed | XVI | 11 |
| Ingersoll, Richard | 5th cousin 5 times removed | XVII | 11 |
| Ingersoll, Richard | 4th cousin 4 times removed | XIV | 9 |
| Ingersoll, Richmond Hayward | 6th cousin 3 times removed | XVII | 10 |
| Ingersoll, Robert | Uncle | III | 2 |
| Ingersoll, Robert Francis | 7th cousin once removed | XVII | 9 |
| Ingersoll, Robert G. | 8th cousin twice removed | XX | 11 |
| Ingersoll, Robert Green | 6th cousin 4 times removed | XVIII | 11 |
| Ingersoll, Robert T. | 6th cousin twice removed | XVI | 9 |
| Ingersoll, Robert Thompson | 7th cousin twice removed | XVIII | 10 |
| Ingersoll, Robert Walker | 5th cousin 3 times removed | XV | 9 |
| Ingersoll, Roger Baker | 6th cousin twice removed | XVI | 9 |
| Ingersoll, Roland | 5th cousin 3 times removed | XV | 9 |
| Ingersoll, Ronald | Half uncle | III | 2 |
| Ingersoll, Rosa Abba | 5th cousin 4 times removed | XVI | 10 |
| Ingersoll, Rose H. | 6th cousin twice removed | XVI | 9 |
| Ingersoll, Ross A. | 5th cousin 3 times removed | XV | 9 |
| Ingersoll, Roxy | 4th cousin 4 times removed | XIV | 9 |
| Ingersoll, Roy William | 6th cousin twice removed | XVI | 9 |
| Ingersoll, Russell Harley | 7th cousin 3 times removed | XIX | 11 |
| Ingersoll, Russell Richard | 8th cousin twice removed | XX | 11 |
| Ingersoll, Ruth | 3rd cousin 7 times removed | XV | 11 |
| Ingersoll, Ruth | 5th cousin 5 times removed | XVII | 11 |
| Ingersoll, Ruth | 1st cousin 9 times removed | XIII | 11 |
| Ingersoll, Ruth | 2nd cousin 8 times removed | XIV | 11 |
| Ingersoll, Ruth | 4th cousin 6 times removed | XVI | 11 |
| Ingersoll, Ruth | 3rd cousin 5 times removed | XIII | 9 |
| Ingersoll, Ruth | 8th cousin twice removed | XX | 11 |
| Ingersoll, Ruth | 6th cousin twice removed | XVI | 9 |
| Ingersoll, Ruth Ann | 7th cousin 3 times removed | XIX | 11 |
| Ingersoll, Ruth Anne | 6th cousin 4 times removed | XVIII | 11 |
| Ingersoll, Ruth Dean | 4th cousin 3 times removed | XIII | 8 |
| Ingersoll, Ruth Emma | 6th cousin 3 times removed | XVII | 10 |
| Ingersoll, Ruth Lydia | 7th cousin once removed | XVII | 9 |
| Ingersoll, Ruth Marie | 7th cousin twice removed | XVIII | 10 |
| Ingersoll, Ruth O. | 6th cousin twice removed | XVI | 9 |
| Ingersoll, Ruth R. | 4th cousin 5 times removed | XV | 10 |
| Ingersoll, Sally | 4th cousin 5 times removed | XV | 10 |
| Ingersoll, Sally Blake | 5th cousin 4 times removed | XVI | 10 |
| Ingersoll, Sam Millet | 2nd cousin 5 times removed | XI | 8 |
| Ingersoll, Samuel | 2nd cousin 8 times removed | XIV | 11 |