Bettie Page Black Bucket Bag

Is it Bettie or Betty? While it reportedly says "Betty Mae Page" on her birth certificate, "Bettie" is the form that she has always used since she was a child (such as for signatures), so Bettie is therefore the preferred spelling. However, whether due to oversight or for the sake of simplification, in her 1950's photos and films she was often billed as "Betty Page." So for Bettie or worse, today the two spellings are used more or less interchangeably.