In Cryptonomicon, there are three people who escape from the Golgotha gold store in the 1940s, Goto Dengo, Wing and Bong, in the chapter called "Deluge". Goto Dengo and Wing play prominent parts in the rest of the story, but Bong is not mentioned again.
There is a driver called Bong Bong Gad, mentioned in the modern thread of the story, who drives Shaftoe and Randy into the jungle. I'm not sure if he is related though.
Just curious is anyone has any thoughts or theories about Bong.