a closeup of Shelley from a 1964 pic
from Show magazine
Show publisher and A&P heir Huntington Hartford discovered Shelley at a debutante ball and urged her to try modeling. He liked her look so much, he put the 17-year-old high school student on the pages of his magazine. Shelley appeared on the pages of Show in a spread called "Shelley Hack, A Show First" on their September 1964 issue. Describing her as a perfect model of youthful sophistication, the mag said she had a whimsical look about her and had a long line of fashion magazines clamoring to immortalize her look. The mag had the first published pictures of Shelley. A month later, she appeared on the November 1964 covers of both Glamour and Seventeen magazines. Twelve years later, she was a Supermodel.
Shelley from Show magazine, 1964