Definitely a '60. Wonder what year the photo was taken? Judging by hairstyles, early to mid '60s?
Also, the car's bumper is still shiny but the paint is oxidized...so I'd guess 1963-64. It has a drill-on dealer nameplate, so they're probably east of New Mexico...and thus added to my factoring of the date.
And yes, judging by the complexions, the mother and daughter must have lived (been held captive?) in their bomb shelter 23/7.