| John Babbage | Babbage's great - grandfather |
| Sir Benjamin Babbage | Babbage's grandfather (Mayor) |
| Benjamin babbage | Babbage's father (merchant banker) |
| Dr John Babbage | Babbage's uncle |
| Elizabeth Babbage (Plumleigh) | Babbage's mother |
| Mary - anne Babbage | Babbage's sister |
| Georgina Babbage | Babbage's wife |
| Benjamin Herschel Babbage | Babbage's eldest son |
| Georgina Babbage | Babbage's daughter |
| Major general Henry Prevost Babbage | Babbage's youngest surviving son |