I have spoken to a member of his family; they haven't yet made funeral plans.
Hugh was known among hackers, among science fiction fans, among privacy advocates, and, no doubt, among people in many more circles beyond I'm not aware of. He was a walking bundle of enthusiasm. This morning, Eric S. Raymond wrote, "World will be a duller place with Hugh gone." Amen to that.
Here's my 2011 essay about Hugh.