British admiral and explorer who mapped out Australia's coast and found what became Port Moresby.
He joined the Royal Navy at 12 years of age as a cadet.
He served all over the region around Australia surveying, charting, and fighting off kidnappers.
His father was naval officer Admiral Sir Fairfax Moresby.
Port Moresby became a vital base for U.S. General Douglas MacArthur, who commanded the war effort in the Pacific in WWII.