I think "our" L&C would have far more problems with Jason's Clark having behaved so poorly than with Jason's name. If they could accept that Jason's Clark was so different than their Clark, I don't think they'd have too much trouble believing that Jason Trask might be different, as well.
It might also depend on when you are setting the story. I am assuming that it is after L&C are at least engaged.
Sounds like an intriguing tale.
Joy,
Lynn
