Rene was ranked among the top 1000 U.S. girls' names from 1944 to 1988, mirroring the peak period of Renee's popularity. To most Americans, it would have been considered merely a spelling variant of a female name, not a usage of a male name for girls.
Ditto for Noel/Noelle. Both spellings are common for girls. Noel is especially frequent as a girls' middle name.