| A | B |
| Mr. Boyd Henshaw | a writer who inspires Leigh to write |
| Bandit | a dog who loves to ride in 18 wheelers |
| Leigh Botts | determined to find who's stealing his lunches |
| Katy | a caterer who makes yummy food |
| Bonnie | a mother who loves her son dearly |
| Bill | a father who's always on the road |
| Miss Martinez | a teacher who notices how well Leigh writes |
| Pacific Grove | the setting of the story |
| Mr. Fridley | a kind custodian who looks after Leigh |
| California's Central Valley | major US farming region |
| Wyoming | home of Mr. Henshaw |
| Monarch | type of butterfly found by the thousands in Pacific Grove during the winter |
| Barry | a boy who wants an alarm on his bedroom door |
| the Sierra | high mounntains where Bandit was lost |
| Miss Neely | teacher who in charge of Famous Authors Project |
| Mrs. Angela Badger | author who enjoyed Leigh's essay |
| Chuck | man who works at the gas station |
| Las Vegas | where Leigh's parents were married |
| Wild Bill from Bakersfield | Leigh's dad's trucker name |
| Spreckles | sugar beet refinery (makes sugar) |