A voice like Katharine Hepburn

I want to write a story about a girl with a voice like Katharine Hepburn.  A young Katharine Hepburn, but wise for her years and still full of innocence.  

She'll have Hepburn's tenacity and her unconventional femininity.  Maybe she'll even wear "trousers" to work instead of skirts.  Maybe she'll work at a brewery in Milwaukee and paint on the weekends.

She'll have black hair and she won't fall for a guy like Spencer Tracy.

She'll fall for a kookie guy like Johnny Depp who showers only twice monthly.