Alexander Hepburne Macklin was a Scottish physician and polar explorer who played a key role in early twentieth-century Antarctic travel. Born in 1889, Macklin is best remembered for his service under the renowned explorer Sir Ernest Shackleton. He was selected as one of the two surgeons tasked with safeguarding the health of the crew during the Imperial Trans-Antarctic Expedition, a historic journey that spanned from 1914 to 1917.\n\nBeyond his medical responsibilities, Macklin proved to be a versatile member of the expeditionary team. He took on the demanding roles of dog trainer and quartermaster, contributing significantly to the daily operations and logistics of the voyage. His commitment to polar exploration continued years later when he rejoined Shackleton for the Shackleton–Rowett Expedition of 1921–1922, serving aboard the expedition vessel, the Quest. Macklin passed away in 1967, leaving behind a legacy of endurance and medical service in some of the world's most challenging environments.