Thanks a lot for the replies, everyone - especially SoloTripper.  And thanks to you, also, for going the extra mile and making phone calls simply trying to get an answer.  Any one of the theories regarding his disapearance could be true.  I just hope all is well with QD and his family.

We've utilized QD for shuttles into Beaverhouse, as well as the occasional canoe, etc.  Unfortunately, people don't make a good living off of guys like us.