Geraldine Hoff Doyle, was 17 years old (in 1942) while she was working at the American Broach & Machine Co. when a photographer snapped a pic of her on the job.
That image was used by J. Howard Miller for the “We Can Do It!” poster, released during World War II.
(Source: stangefruitandwildthing, via bamfcookiemonster)