Dennis has been batteling cancer on and off since the early 90's. It came back a few years ago, but he beat it again. I don't know what happened to Porter. He dropped off the scene a long time ago. He just didn't have the size, but he was smart and didn't try to play the size game. Charles still contributes to Flex and other bbing mags every so often. He did a pec routine layout in Flex 8 or 9 months ago.
It's sad how quickly we forget these guys. Very few are remembered. Even the mid-late 90's group of Nasser, Flex, Michael Francois, etc are becoming forgotten. They put so much into this for very little money and even less fame. It must truly be a passion for them. I can't see any other reason they would do it. For every Arnold, Haney and Coleman there are hundreds more who were forgotten the minute they stepped off stage.