A frustratingly incomplete claim for invention of jimmies:
Two yummy treats he invented chocolate jimmies and the chocolate coating for
ice cream are still popular today.

It seems beleivable, because it is about a large chocolate maker:

I found another quote about him:
"The Just Born candy tradition was conceived in 1910, when Sam Born immigrated to
the Uniited States from Russia. A candy maker by trade, Born was ingenious in the use
of technology. Some of his more famous inventions include chocolate sprinkles, known as
"jimmies" and the hard coating on ice cream bars"