Eupen-Malmedy is the German-speaking region of Belgium.
She learned a French style of copybook writing. It's not going to help solve the case, only a DNA match, or bombshell classified file released is going to do that, but it could connect key missing dots from her past. So to recap what we do know based on the later scientific evidence, and details from the 2018 DIIV BBC/NRK podcast. (I do trust the scientific results to a degree)
1. She was Haplogroup type H24 on her mother's side
(H24: found in Britain, Ireland, Spain, Germany, the Czech Republic, Poland, Denmark and Finland / found in the Funnelbeaker culutre in Sweden)
2. She was likely born somewhere around the city of Nuremberg Germany pre-WWII (1939) Range could be from 1925 to 1930. So that would make her age 40-45 at the time of her death. Much older than the ME thought in 1970. Why was she trying to be younger?
3. She had gold dental work, very common in Germany, Russia *Far East and Central Europe.
4. She never had children according to ME report.
5. Her body was theorized to have been burned twice, only on the front though. Her back was not burned. Consistent with theory that someone lit her up while she was lying on her back. Perhaps the first attempt failed, so they had to do it again. No evidence of the fuel used was ever found, just one officer stating that her cossack style fur cap found under her smelled strongly of petrol (gasoline)
6. The pills found in her system, *and mouth were Fenamal (Phenobarbital) common sleeping pills. Pink variety not sold in Norway. Definitely sold in the UK, and possibly other countries. I am very curious if Germany, Eastern Europe, or Israel, Middle East too?
7. ME determined she was still alive when she was burned due to soot in her lungs. Was the killer/s rushed? or didn't care as long as she was erased?
8. Norway's secret police based in Oslo investigated after the body was found, and came to the conclusion she was not a spy and not much else. Yet a witnessed item seen in their file in the early 70's has gone missing. (envelope with cassette tape) My theory is that they thought she was involved in espionage during the NATO Penguin missile trials.
The S.P. investigator who came out in 1970 the late Ornulf Tofte told the Death in Ice Valley podcast in 2018 one of the most ridiculous explanations I've ever heard. "She dropped her giant bottle of hairspray in a fire and blew herself up" Lol I was dumbfounded when I first heard that. To me it's pretty clear someone, or some people went to great lengths to prevent not only identifying her (face burned off) but also destroying ways police could trace her (labels scratched out, id gone, no passports, nothing) The investigation was abruptly stopped, and they ruled suicide and that did not sit well with not only Bergen police, but people who covered the case in the press.
9. She specifically stayed in stricter Christian hotels in Norway. She used a lot of Christian names in her writing, and a Christian icon was found in her suitcase. I would assume this is all why the Bergen police gave her a traditional Catholic burial ceremony. Had she been Jewish, Israel would of wanted the body back. They've traded terrorists for dead Mossad/IDF. I personally think she was devout Orthodox, or Catholic, very possibly at least half Roma (gypsy) which would be majority Orthodox.
My personal theory.
There's some connection to Israel still, and it was quietly dealt with behind the scenes by higher authorities than the local police. Very possible her true identity was never known just her connections. The Israel connection was mentioned twice in the DIIV podcast. Once by a crime reporter/writer who covered the case in 1970, and later by the grand daughter of a former Bergen police detective. This would explain why it was never allowed to be solved, and no one ever came forward. International complications *see 1973 Lillehammer. We know she wasn't of Jewish heritage, her maternal test results ruled that out (H24) So who's side was she on? Why was she able to almost spell the very difficult Slovene word "Ljubljana" on a hotel registration if she wasn't familiar with the city? Why did she write Brussels in German form? Why did she write down the rare German district term "Kreisleitung" only used in occupied Nazi areas in WWII. And only later in the GDR by the Stasi after 1945 up until 1989? A shop owner later claimed a woman matching IW's description wanted to buy a special holiday silverware set to be sent back to Germany. Then there was the later claim of the hiker who claims to have seen IW followed by two men with darker skin (Mediterranean) walking up Mt. Floyen as he was descending. Where were they going? So many bizarre possible happenings. :/