Actually, a LOT of help.
Friend and reader Harpoon had done us the service of wading through the stories of the Smart Girls and made up a character list with name and the story and chapter where that character first appeared, as well as a brief description of the character's function.
You can find it at https://docs.google.com/spreadsheets/d/125I82I8b3dZus6JvJmLXVddcVV4593Gb18lT1AdTrag/edit?usp=sharing.
We've got a lot of stories in this universe, and I thank Harpoon for taking the time and effort to put this together.
I hope it helps your enjoyment of the stories.