author
b. 1882
An early 20th-century veterinary writer, he focused on practical treatment and diagnosis for animal health. His books reflect hands-on clinical experience and a clear interest in making veterinary care more useful for everyday practice.

by Mart R. (Martin Robert) Steffen
Mart R. Steffen, listed by Project Gutenberg as Mart R. (Martin Robert) Steffen, 1882-, was a veterinary author active in the 1910s. His surviving published work places him in the world of applied veterinary medicine rather than literary writing, with books aimed at practitioners and students.
In the 1919 treatise A Treatise on Regional Iodine Therapy for the Veterinary Clinician, he is identified as Mart R. Steffen, M.D.C., V.S. and also credited as the author of Special Veterinary Therapy, Special Cattle Therapy, Clinical Diagnosis of Cattle Diseases, Special Equine Therapy, and Veterinary Clinical Notes. The book presents iodine therapy as a practical clinical tool and shows his interest in direct, experience-based treatment methods.
Some editions and catalog records connect his work with Milwaukee, Wisconsin, and with veterinary publishing in the United States during the 1910s. Beyond those bibliographic details, readily available online sources appear to preserve much more about his books than about his personal life, so a full biographical portrait is hard to confirm.