author
Known from public-domain veterinary writing, this author is associated with practical guidance on cattle health and feeding from the late 19th century. The surviving record is sparse, but the work linked to this name points to hands-on expertise in animal disease and livestock care.

by United States. Bureau of Animal Industry, V. T. (Vickers T.) Atkinson, Dr. (William) Dickson, A. (Adolph) Eichhorn, Richard W. (Richard West) Hickman, James Law, (Dr.) (William Herbert) Lowe, C. Dwight (Charles Dwight) Marsh, John R. (John Robbins) Mohler, A. J. (Alexander James) Murray, Leonard Pearson, Brayton Howard Ransom, M. R. (Milton R.) Trumbower, Dr. (Benjamin Tilghman) Woodward
A. J. Murray, identified in library and public-domain records as Alexander James Murray, is credited as a contributor to Special Report on Diseases of Cattle and on Cattle Feeding, published by the United States Bureau of Animal Industry in 1892.
Project Gutenberg and library records connect Murray in particular with the section on diseases of the digestive organs in cattle, which suggests a veterinary or livestock-health focus. Another catalog record also links the same name to Cattle and Their Diseases from 1887.
Beyond those book and catalog references, I couldn't confirm many biographical details about Murray's life, career, or dates. Because the available information is limited, it's best to remember him primarily as a writer associated with early practical veterinary literature on cattle.