| Answer | Crossword Clue |
|---|---|
| MUIR | John who founded the Sierra Club |
| MUIR | John who wrote "My First Summer in the Sierra" |
| MUIR | Sierra Club founder John |
| MUIR | Sierra Club founder John ... |
| MUIR | Sierra Club cofounder John |
| MUIR | Sierra Club founder John ... |
| MUIRS | Sierra Club founder John et al. |
