Kathryn,
Here is a pic of Zoe at 5 months, and now her hair is long...her skirt below the body hangs down about 4", and her face hair is at least 4" long or more. I think they all just "mature" at their own pace, but they are ALL so beautiful! I thought for sure that Zoe would never get hair (now I miss the non-tangling super short version
).