That was my first response, too, when I read that. It seems to fall within the propaganda that was being circulated in Germany in the 1930s about physical characteristics to identify Jewish people.
But I did read this article that stated nearly two thirds of Jews are descendants from Ashkenazi Jews and most of them live in North America. Another article said there are certain illnesses that can be found in Ashkenazi Jews and one of them was Fanconi Anemia. I also read that many Jewish people are lactose intolerant and untreated lactose intolerance can create anemia. Here's some links:
Fanconi anemia (FA) should be included among the genetic diseases that occur at high frequency in the Ashkenazi Jewish population. FA exhibits extensive genetic heterogeneity; there are currently 11 complementation groups reported, and 8 (i.e., FANCA, FANCC, FANCD1/BRCA2, FANCD2, FANCE, FANCF...
pubmed.ncbi.nlm.nih.gov
It’s ironic that traditional Chanukah desserts include rugelach (sweet pastries made from cream-cheese dough) and sufganiyot (doughnuts) even though Jews and dairy tend not to get along – intestinally speaking. Nearly 62% of the 110 Jewish Israeli children who were part of a 1985 study were...
www.sajr.co.za
www.foodintol.com
One of the doctors said he believed the victims were probably from Boston, where an orthodontist could have done the expensive orthodontic work, since it was the closest large city to the dump site, but another big city is actually closer and it's traditionally had a fairly high Jewish population. Montreal.
I'm interested in the squashed bullet found within the burial site under one of the skulls. If it still had its copper jacket that means it hadn't been fired.
Also, the other items found are of interest to me, especially what appears to be the remains of an awning, along with its pulley system. I would presume that an awning during that era would most likely belong to a commercial building and would be used at street level to shade windows and entrances. Early awnings from the late 19th century used a pulley system to adjust the shade. A bit cumbersome in the inclement weather during the winter they could be taken down. If this awning material was from a commercial building like a shop, it's possible it would be taken down during the winter because of snow load and the damage it could cause. It doesn't really give us any location other than the area where the remains were found but Montreal can get lots and lots of snow in winter. Unfortunately so can Albany, NY and Boston.
ETA: kept reading and found out the awning was investigated.