:::I agree the privacy/stalking issue need careful handling. But you said the info was already publically available  my point on sourcing is simply to cite where it's already publically available. THat is what alot of sourcing on WIkipedia involoves anyway. Even in cases where something is very-well known publically, it is still useful to have a good source, because they usually contain info not recorded here, and hence are good for those seeking further info on a topic. At least that is the way I read, and it's one reason Wikipedia has internal links to other articles, besides the simple fact that it's possible. 

 :::However, that still leaves the issue of Notability: not of the owners themselves, but of the fact they own the aircraft. I agree it is different than listing Cessna owners by virtue of cost and numbers. However, the GBLX is designed for use by VIPs and businesses, so these ownerships/usages are not really unique, as, again, is Travolta's ownership of a 707. Now if a celebrity LIVED on their GBLX, or otherwise did something unique with it, like park it in the garage of their home, THAT type of thing might be worth mentioning. -