Crossword clues for the word: MUIRS The word MUIRS has appeared as an answer to at least 5 crossword clues on different crossword puzzles. Crossword clues for MUIRS Showing 1 to 5 of 5 results Clue(s) "Naturalist John, et al." Heaths (Scot.) Naturalist John and poet Edwin Naturalist John's family Sierra Club founder John et al.