She was one of the rare female 40s writers in Campbell, Jr.'s Astounding. I reviewed most of the short stories in her fix-up novel Children of the Atom (1953) on my site.
https://sciencefictionruminations.com/2022/04/16/short-story-reviews-wilmar-h-shiras-in-hiding-1948-opening-doors-1949-new-foundations-1950-and-a-days-work-1952/