"Bob Moore" wrote in message
. 121...
Ron Natalie wrote
When the Smithsonian had there's in it's own temporary hangar it
looked small.

RON!! I don't believe it! "their's".....:-)

Or, if you actually want to get it correct, "theirs".

The word "their" is already possessive, so the apostrophe isn't used to
indicate possessive in that case.