George Henry Horn

George Henry Horn (April 7, 1840 – November 24, 1897) was an American entomologist who specialized in the study of beetles.

Biography Born in Philadelphia on April 7, 1840, Horn attended the University of Pennsylvania, from which he graduated with a degree in medicine in 1861. From 1862 to 1866, he served in the American Civil War as surgeon to the infantry of the California Volunteers, during which time he collected insects extensively in California, Arizona, and New Mexico. He then returned to Philadelphia, where he established a medical practice, specializing in obstetrics, and was elected president of the Entomological Society of Philadelphia, the predecessor of the American Entomological Society. He would remain president of the latter society until his death.

He was elected as a member of the American Philosophical Society in 1869 and was the librarian and one of the secretaries of the society at the time of his death.

According to the entomologist Neal Evenhuis,

Throughout his career, he worked closely with John Lawrence LeConte, most notably as coauthor of the revised and expanded 1883 edition of LeConte's then-standard Classification of the Coleoptera of North America; and after LeConte's death Horn was recognized as "easily the most eminent investigator in his chosen line of work".