| Arthur Quiller-CouchAuthor, critic and academic |
| Sarah Lander CouchJonathan Couch's third wife |
| John Quiller CouchUncle of Q and a doctor in Penzance |
| Thomas Quiller CouchQ's father, doctor and botanist |
| Richard Quiller CouchQ's uncle, doctor, investigator of occupational diseases and naturalist |
| Richard PearceFather-in-law of Richard Quiller Couch and a distinguished man of Penzance |
| Jonathan CouchQ's grandfather, distinguished naturalist and antiquarian |
| Lydia Penneck CouchQ's aunt, wife of Richard Quiller Couch |
| The Couch Family in the 16th and 17th CenturiesThe ancestors of Jonathan Couch, Q's grandfather |