` ` ` the Riveter '' appeared on the cover of the Saturday magazine Post on May 29 , 1963 . Mary ` ' was a 19-year - old telephone operator at the time .
`` Rosie the Riveter '' appeared on the cover of the Saturday Evening Post on May 29 , 1943 . Mary Doyle Keefe was a 19-year-old telephone operator at the time .