George Emory Goodfellow was a physician and naturalist in the 19th- and early 20th-century American Old West who developed a reputation as the United States' foremost expert in treating gunshot wounds. As a medical practitioner in Tombstone, Arizona Territory, Goodfellow treated numerous bullet wounds to both lawmen and outlaws. He recorded several significant medical firsts throughout his career, including performing the first documented laparotomy for treating an abdominal gunshot wound and the first perineal prostatectomy to remove an enlarged prostate. He also pioneered the use of spinal anesthesia and sterile techniques in treating gunshot wounds and is regarded as the first civilian trauma surgeon.

Tombstone is a city in Cochise County, Arizona, United States, founded in 1879 by prospector Ed Schieffelin in what was then Pima County, Arizona Territory. It became one of the last boomtowns in the American frontier. The town grew significantly into the mid-1880s as the local mines produced $40 to $85 million in silver bullion, the largest productive silver district in Arizona. Its population grew from 100 to around 14,000 in less than seven years. It is best known as the site of the Gunfight at the O.K. Corral and presently draws most of its revenue from tourism.