A little suggestions: the people who knew him personaly could start putting factual information that they have easier access to: his real name, exact birth and death date, where he was born, where he studied, where he lived, someone famous in his family.
Other facts that would help: when his pages were published for the first time, who helped with hosting, when he decided to change cracking content for searching stuff, etc.
He gave some talks at conferences and knew some famous people. Who, when, where? The family can assist with references. Don't forget to keep searching Google: people that knew him could be writing right now something that could be accepted as a reference.
And don't be confrontational with wikipedists! They seem to be taking a constructive approach.
Other facts that would help: when his pages were published for the first time, who helped with hosting, when he decided to change cracking content for searching stuff, etc.
He gave some talks at conferences and knew some famous people. Who, when, where? The family can assist with references. Don't forget to keep searching Google: people that knew him could be writing right now something that could be accepted as a reference.
And don't be confrontational with wikipedists! They seem to be taking a constructive approach.