What's in a name? Or not? I have no idea who cynthia might have been, or how she earned this honor. The two-flower epithet both in the scientific and common versions is from the plant's very inconsistent tendency to have two on a stem. Krigia comes from David Krieg who first recorded the genus, in Maryland. Even here, the spelling differs. The International Plant Name Index says this plant was first described and named in 1915. That makes no sense to me. Such a common one would not have been missed through all the centuries. But they are normally extremely accurate.
The Menominee had a way to use these stems to make a sound like a distressed fawn, to lure the mothers to the hunters.