Here is the death record for Freida Kamm, wife of Emil, who lived in Chicago: https://www.familysearch.org/ark:/61903/1:1:QLYT-W6MS
It says she was born in Lemberg, Austria (now Lviv, Ukraine). This is nowhere near Kovno. People did occasionally move long distances, even then, but it is more likely that Herzl Bloom's wife was more local, a Litvak rather than a Galicianer.
We know, in addition, from Rudolph Drosd's book and Lilly Bloom's records that Herzl Bloom's third wife was Rose Potastik or Potashchik. We know from Sarah Bloom Cohen's records that her mother was Bessie Kaplan. So that suggests that Herzl's wife Frieda was his first wife. While divorce happened in those days, it was much rarer than death as a reason for remarriage. So in all likelihood, Herzl's first wife Frieda predeceased him in Lithuania.
In addition, as Golda pointed out, the birth years of Frieda's children with Emil appear to overlap with the years of birth of Herzl Bloom's children.
For all of these reasons, it is exceedingly unlikely that the Frieda Kamm who died in Chicago had anything to do with Herzl Bloom's wife Frieda.
In my opinion, these two families should be separated.
From Chicago Frieda's death record we have her parents as Max and Frances. I've been unable to locate a photo of her gravestone so far to see if it might have her father's Hebrew name. The FamilySearch tree has Raphael Kamm and Feiga Tand as Frieda-of-Chicago's parents, with some reference to the Gesher Galicia database that I haven't checked out. But I think that those parents should at least provisionally be attached to Frieda Kamm of Chicago rather than to Herzl Bloom's wife.