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Please do not tag this page for deletion as it is under construction. I have a lot more info but limited time so the next few days will be slow until I'm able to get everything up. Hopefully I'll have some other contributors adding content as well, so just give it some time. Thanks.
If anyone has any other content or sources about Mark, please feel free to login and add it. The page is moving up in search results and the visibility can be improved by the more articles you link it to.