Apparently the theory gained traction thanks to this article summarizing the research: https://medium.com/@yurideigin/jaccuse-why-122-year-longevit...
There are so many leaps of logic in there that it's hard for me to take seriously. I like in particular that they use this photo to argue that Yvonne was taller than Jeanne when their posture is completely different: https://miro.medium.com/max/1050/1*VBI9NRmZ58XcZXif_6cgzw.pn...
I think the best argument in favor of this theory is that apparently Jeanne asked for some family documents to be destroyed which does seem highly suspicious, although it's also quite plausible that there were some other family secrets she didn't want to be made public especially since at the time she was becoming famous worldwide.
Meanwhile Jeanne was apparently able to name old professors and maids of hers, things that her daughter would probably not have known or remembered.
I wouldn't rule the theory out entirely but it's rather flimsy at this point IMO.
> Besides I think the counter-argument that the people in Arles would've noticed if Fernand Calment suddenly started pretending that his daughter was his wife seems rather pertinent.
This seems to assume a lot about the nature of their personal and social life. According to the Wikipedia article they didn't even live in the same apartment while they were married, so perhaps they weren't seen together in public.
> Meanwhile Jeanne was apparently able to name old professors and maids of hers, things that her daughter would probably not have known or remembered.
Really? If you're going to go assume someone else's identity with their cooperation and you're not stupid you're going to find out every little detail about their past life and remember it.
>Really? If you're going to go assume someone else's identity with their cooperation and you're not stupid you're going to find out every little detail about their past life and remember it.
The only motive they managed to dig up for the potential daughter/mother swap was to avoid inheritance taxes. Would they really go through all that effort for something like that? Would the administration really start asking such minute details about Jeanne's life to make sure that it was indeed her? How would they have even known to ask for something like that? It wasn't some young jew trying to evade the Gestapo during WW2, it was (presumably) a rich family trying to avoid taxes. It doesn't really add up to me. Actually it sounds like a world of troubles to avoid paying taxes to me, but who knows, rich people are weird.
More generally I agree that her age is extremely anomalous and as such it warrants some skepticism and there might be something hiding underneath all that. Still, at this point we have decades of researchers who have investigated her case and found nothing weird, and then these two Russian researchers who built this theory comparing old photographs and making Facebook polls asking their friends who they thought looked more like Jeanne on the pictures (it's literally in their paper, I'm not making it up).
It's possible that it's true but the evidence so far is extremely circumstantial and rather weak. The most compelling argument is effectively "people don't live to 122, so something fishy is going on". I suppose it's worth considering.
I'm not commenting on the plausibility of this woman assuming her mother's identity in 1934 to avoid taxation.
I'm pointing out that the comment about her supposed daughter knowing the name of her mother's math teacher doesn't make any sense as a refutation of those events if we otherwise assume them to be plausible, which that part of the Smithsonian article does.
Yes she's not fleeing the Gestapo, she's allegedly trying to avoid paying taxes. Are we to think that someone who's otherwise keeping up such a ruse wouldn't have thought that it could unravel because she doesn't know the name of her high school's best friend's sister's boyfriend or whatever?
Even if she hadn't thought about that at the time this quote is based on an interview she had in 1990 when she was 115 years old. At that point she'd have had a lot of time to consider that maybe her tax fraud was going to destroy most of her assets and possibly land her in prison, so maybe doing some research on her mother's life was in order.
The research of the 2 Russian guys who don’t speak a single word of french is full of very basic error and is rather of the level of the usual conspiracy theory (the city knew but everybody remained silent)
Fix: and then these two researchers
Again, I find anecdotes about Jeanne apparently being able to name old professors Yvonne wouldn't have personally met but might have heard tales of whilst also getting some other events wrong and occasionally mixing up things her father owned with things her husband owned rather uncompelling (much like I find the conspiracy versions' photographic comparisons and weird obsession with "hunter's gait" uncompelling). I think the big hole in the conspiracy theory is "why not just pretend they were both still alive"?
Both sides' evidence is pretty flimsy considering the extraordinary claims standard we should be using for both: there's one way for anyone that cares enough to settle the question and that's DNA
One of them was definitely dead and inheritance taxes were very high at the time. There's a good motive for the daughter to claim to be her mother.
It also explains why the son-in-law happily lived with his departed wife's "mother" for the next several decades (she was actually his wife pretending to be the mother).
Quite frankly, there's a lot of silly logic required to justify a lot of bizarre things Jeanne did after this census, which all make sense if Jeanne was really Yvonne by then. Occam's razor: is it more likely that the mother kept calling her husband her father for a few decades in casual conversation and lived with her son-in-law but not her husband, or is it more likely the daughter kept slipping up while trying to maintain the facade and lived with her own husband?
After the initial report was published a number of let's say "conspiracy theorists" made their own articles and tried to find new things sometimes with doubtful methods.
The original research doesn't claim that any particular piece of argument in itself is conclusive but that combined together, it creates a corpus of oddities that amount to a strong doubt.
In particular she made several "mistakes" when relating the names of people living with them, including the maid as you mention, which would be consistent with a maid that accompanied Yvonne to school but not Jeanne. See "Whom did Marthe Fousson accompany to school?" from the link above. Similarly for the piano teacher.