9 – Whistling Dixie

A panel from "Dixie Dugan" in Famous Funnies #9, March 1935.
Dixie Dugan, 1935

Dixie Dugan was a long-running comic strip following a showgirl-turned-career girl and recollected in Eastern Color’s “Famous Funnies”.  Wikipedia tells me she was modeled after Louise Brooks, who had a bob haircut.