The Hubbard Medal has been presented 35 times as of 2010, the most recent award going to Don Walsh.

"They don't like to talk about things before they happen," said Don Walsh, a former Navy captain who was on Trieste's pioneering dive and has advised the Japanese.

Gold had been expecting to hear from either Don Walsh or Ahmed al-Rashid before long.

It turns out that another detective is also hot on the tracks of the shooter: a white cop named Don Walsh, who has his own personal reason to catch the killer.

The central character, Don Walsh, seems the only sane man left and refuses to join either side.

Don Walsh (born November 2, 1931) is an American oceanographer and explorer.

It has been reported that Don Walsh was on the team that oversaw James' journey.

In 1960, Don Walsh and Jacques Piccard descended to the bottom of the Challenger Deep in the Trieste bathyscaphe.

In 1960, Piccard's son Jacques and a young naval lieutenant named Don Walsh took the Trieste on a dive to the very nadir of the living world.

Don Walsh, Doctor.