I have a children's book, "Juba This and Juba That: Story Hour Stretches for Large or Small Groups" selected by Virginia A. Tashjian, published by Little, Brown and Company in 1969. It gives the words to a chant, "Juba this and Juba that, Juba killed a yellow cat, Juba up and Juba down, Juba runnin' all around" with directions for call and response, hand claps, and slapping hands on knees, cheeks, etc. The rest of the book has other chants, songs, and stories to do with groups of children. The book does not tell of the origins of any of the material. I assume it was all in the public domain, since the book says, "Selected by Virginia A. Tashjian.