Don't forget Victor Berge, Pearl Diver
Louis Korntizer's Trade Winds
Alan Villier's Sons of Sinbad
These are all first person accounts of pearling in the South seas and off Bahrain.
I just got a copy of Streeter's Pearls & The Pearling Life. Its expensive, you will pay a lot of that muffler but the others can be had for under 50 bucks.