Petite, attractive Mari Blanchard rarely managed to get the lucky breaks. The daughter of an oil tycoon and a psychotherapist, she suffered from severe poliomyelitis from the age of nine, which denied her a hoped-for dancing career. For several years, she worked hard to rehabilitate her limbs from paralysis, swimming and later even performing on the trapeze at Cole Brothers Circus. At the urging of her parents, she then attended the University of Southern California, where she studied international law before dropping out nine units short of a degree. Her university studies did not lead to a career either. Sometime in the late 1940s, she joined the Conover Agency as an advertising model and, at the same time, was promoted by famed cartoonist and writer Al Capp, becoming the inspiration for one of his Li'l Abner characters.