The toy he is holding is interesting, too

[CozyMystery]

I never noticed that toy, and I've seen that picture several times, until I read the article.

"Lest any reader question Santa’s allegiance in the Civil War, he wears a jacket patterned with stars and pants colored in stripes. In his hands, he holds a puppet toy with a rope around its neck, its features like those of Confederate president Jefferson Davis."

https://www.smithsonianmag.com/history/civil-war-cartoonist-created-modern-image-santa-claus-union-propaganda-180971074/