Traffic Lights Triplets

Original:  Page from a 1950's sewing pattern catalog

As soon as I saw the three girls in red, green, and yellow, I thought of traffic lights:  Stop, Go, and Yield, and what their personalities would be:  Stop would be a “good “ girl, no zing without the ring. Go would sail through romantic relationships unscathed. And Yield, of course, ends up unwed Mommy.