At first I was surprised that it was Elma's voice I was reading. But in the end this writer is just wonderful and I found Nicole Wargin a wonderful character to explore.
Like Elma there are secrets to this character that I will not explore. I will say that the time period of the third book takes place at the same time of the second book. You don't need to read book 2 but there is a spoiler in this book if you hadn't read it.
All the characters were great and the Mary Robinette Kowal never shies from either the misogyny nor the racism prevalent for the time period of this book. Nothing is shocking but it's beautifully written and very much a part of 1960s.
I do hope that if Kowal continues the Lady Astronaut series she adds some LGBTQ characters.