[hanamizu]

You are right. But the swastika was also an Indian symbol and she’s dressed as an Indian. My grandma (who was not an Indian) did a pencil sketch of an Indian in about 1910 and it has swastikas on it. I’m going to give the future Mrs K the benefit of the doubt on this one.

[Olog-hai]

That symbol goes all throughout the continent of Asia too, including the Indians from India. There are two Han (Chinese) character versions of it as well: 卐 and 卍.

The pic with Jackie (then Bouvier) wearing the Campfire Girl costume in question dates to 1941, FWICS.