All three saw peak usage in 1979:
|1980||40 baby girls||20 baby girls||13 baby girls|
|1979||81 baby girls [peak]||27 baby girls [peak]||28 baby girls [peak]|
|1978||73 baby girls||25 baby girls||17 baby girls [debut]|
|1977||6 baby girls||.||.|
|1976||10 baby girls||.||.|
I’ve searched high and low, but so far I can’t figure out what affected these names.
The variant spellings suggest the influence was audio as opposed to visual, and the state data reveals that usage was concentrated in the South (e.g., Texas, Mississippi, Georgia, North Carolina), but those are the only two clues I can offer.
Do you have any thoughts on this one?