The Rescue

From obit in NY Times, 26 August 2014:

   Walter Mazzone Dies at 96; Directed Navy Underwater Feats

Capt. Walter F. Mazzone played a pivotal role in two underwater Navy exploits during the 20th century. In World War II, he kept a waterlogged submarine from going belly up while it was carrying 40 Americans rescued from the Philippines. Twenty years later he helped organize the first Sealab tests of human endurance at crushing ocean depths — conducting the first tests on himself — which established the deepwater diving protocols still used by military and commercial divers today.

Book: Sealab: America’s Forgotten Quest to Live and Work on the Ocean Floor