Mr. Koala Bear (1954) was another of MacIntyre's fictional picture books for young children, about an elderly koala who is unexpectedly visited by two young koalas, who believe he is their uncle. It was commended by the Children's Book Council of Australia in the 1955 awards, for "its humorous and pleasing illustrations." One reviewer thought, "The pictures, bright and gay as the mischief they portray, are more fun than the rhymes." Another wrote, "The jingles are so musical you almost want to sing them", and another suggested that the "delightful picture book in rhyme ... lends itself best to reading aloud." A Times Literary Supplement reviewer found it "not quite at [her] best but still out of the ordinary. Elisabeth MacIntyre supports a thinnish story about Mr. Koala Bear with infectious rhyming couplets and her usual sparkling drawings".
