author
Best known as a co-author of a practical guide to keeping amphibians and reptiles, this environmental writer brought hands-on knowledge to a growing community of herpetology enthusiasts. Sources describe him as an environmentalist and a member of the St. Louis Herpetological Society.

by Tom R. Johnson, Robert N. Bader, Donald J. Coxwell
Donald J. Coxwell is known for his work on Amphibians and Reptiles in Captivity, a guide written with Tom R. Johnson and Robert N. Bader. Project Gutenberg and related catalog records identify him as one of the book’s authors, and the work has remained available through public-domain and audiobook platforms.
A LibriVox author profile describes him as born in 1949, an environmentalist, a contributor to several books on amphibians, and a member of the St. Louis Herpetological Society. Those details fit the practical, educational focus of his published work, which centers on the care and understanding of reptiles and amphibians.
Little biographical information appears to be widely available online beyond those brief references. Based on the sources found, he is best remembered for helping make specialized animal-care knowledge accessible to general readers and hobbyists.