| Name | Relationship with Wendy Libby | Civil | Canon |
|---|
| Ingersoll, Mary B. | Grandaunt | IV | 3 |
| Ingersoll, Mary Catherine | 6th cousin twice removed | XVI | 9 |
| Ingersoll, Mary E. | 5th cousin 4 times removed | XVI | 10 |
| Ingersoll, Mary E. | 6th cousin 3 times removed | XVII | 10 |
| Ingersoll, Mary E. | 5th cousin 3 times removed | XV | 9 |
| Ingersoll, Mary E. | 5th cousin 3 times removed | XV | 9 |
| Ingersoll, Mary Eliza | 5th cousin 3 times removed | XV | 9 |
| Ingersoll, Mary Eliza | 6th cousin 4 times removed | XVIII | 11 |
| Ingersoll, Mary Eliza | 7th cousin 3 times removed | XIX | 11 |
| Ingersoll, Mary Elizabeth | 4th cousin 4 times removed | XIV | 9 |
| Ingersoll, Mary Elvira | 4th cousin 4 times removed | XIV | 9 |
| Ingersoll, Mary Emonett | 7th cousin 3 times removed | XIX | 11 |
| Ingersoll, Mary Eunice | 7th cousin 3 times removed | XIX | 11 |
| Ingersoll, Mary Foster | 3rd cousin 5 times removed | XIII | 9 |
| Ingersoll, Mary Hodges | 6th cousin 4 times removed | XVIII | 11 |
| Ingersoll, Mary Jane | 6th cousin 4 times removed | XVIII | 11 |
| Ingersoll, Mary L. | 4th cousin 5 times removed | XV | 10 |
| Ingersoll, Mary L. | 5th cousin 3 times removed | XV | 9 |
| Ingersoll, Mary Lanman | 4th cousin 5 times removed | XV | 10 |
| Ingersoll, Mary Louisa | 5th cousin 4 times removed | XVI | 10 |
| Ingersoll, Mary Louise | 8th cousin twice removed | XX | 11 |
| Ingersoll, Mary R. | 5th cousin 4 times removed | XVI | 10 |
| Ingersoll, Mary R. | 4th cousin 5 times removed | XV | 10 |
| Ingersoll, Mary Susan | 7th cousin 3 times removed | XIX | 11 |
| Ingersoll, Matilda | 4th cousin 4 times removed | XIV | 9 |
| Ingersoll, Matilda Schieffelin | 4th cousin 3 times removed | XIII | 8 |
| Ingersoll, Maud Robert | 7th cousin 3 times removed | XIX | 11 |
| Ingersoll, Maud Story | 7th cousin once removed | XVII | 9 |
| Ingersoll, Maude R. | 5th cousin 3 times removed | XV | 9 |
| Ingersoll, Mazie | 5th cousin 3 times removed | XV | 9 |
| Ingersoll, Medifer | 1st cousin 7 times removed | XI | 9 |
| Ingersoll, Mehitabel | 4th cousin 6 times removed | XVI | 11 |
| Ingersoll, Mehitable | 4th cousin 6 times removed | XVI | 11 |
| Ingersoll, Melchi Fisher | 5th cousin 4 times removed | XVI | 10 |
| Ingersoll, Melina Russell | 6th cousin twice removed | XVI | 9 |
| Ingersoll, Melinda | 5th cousin 5 times removed | XVII | 11 |
| Ingersoll, Melvin | 4th cousin 4 times removed | XIV | 9 |
| Ingersoll, Mildred | 6th cousin twice removed | XVI | 9 |
| Ingersoll, Mildred Louise | 8th cousin twice removed | XX | 11 |
| Ingersoll, Miles D. | 6th cousin twice removed | XVI | 9 |
| Ingersoll, Minerva | 3rd cousin 5 times removed | XIII | 9 |
| Ingersoll, Minnie Juliette | Grandaunt | IV | 3 |
| Ingersoll, Minnie May | 5th cousin 3 times removed | XV | 9 |
| Ingersoll, Minnie Stewart | 7th cousin twice removed | XVIII | 10 |
| Ingersoll, Minnie V. | 6th cousin 3 times removed | XVII | 10 |
| Ingersoll, Mollie | 2nd cousin 6 times removed | XII | 9 |
| Ingersoll, Mollie | 2nd cousin 6 times removed | XII | 9 |
| Ingersoll, Monroe | 5th cousin 3 times removed | XV | 9 |
| Ingersoll, Morgan | 4th cousin 4 times removed | XIV | 9 |
| Ingersoll, Mortimer M. | 4th cousin 4 times removed | XIV | 9 |
