On the Frontier With Mr. Audubon is a fictional biography of a boy who traveled with Audubon down the Mississippi River. Brenner stated that her love for the country inspired this book and many of her other books about nature. The book was named as an Outstanding Science Book by the Children's Book Council and the National Science Teacher's Association in 1977. That same year it was selected as one of School Library Journal 's Best of the Best Books. In addition to typescripts and correspondence, there are also manuscript notes for this title.
Illustration proofs with watercolor and colored pencil, pp.
Edited with typesetter's marks, chapters 1-10, pp. Book proposal, pp. Edited with typesetter's marks, pp.