That's what I exactly meant. It's nothing personal against you, Carol Jean, but all the evidence you provide is subjective and intangible... I know people who look amazingly like each other and still have nothing in common, genetically speaking.
Furthermore, as belonging to the Royal Family of France is something you knew by oral tradition, it's easy that you could in fact be descended from France's haute noblesse and that this fact has become enhanced during all those generations until you were born. And there were also hundreds of people guillotined and persecuted during the French Revolution who were descendants of other kings of France. Or it could just be a legend. My mother's surname is Berenguer, and in our family oral tradition states that we are descended from the Counts of Barcelona and Rodrigo Diaz de Vivar, el Cid. I would love to be descended from them, but as yet I haven't found any tangible proof of it, so I just take it as what it is until now: oral tradition, family legend...
What I mean is what Eddieboy has pointed out: without any biological or documentray proof, your quest, as you name it, won't have any validity as an investigation. I maintain that it would have been impossible for Louis Charles to escape alone; at the same time, it would have been impossible for someone to help him out and not to write anything about it or at least tell it to someone!