Eccardus, in a very interesting paper, discusses the physical, moral, and religious questions in reference to these wonderful sisters, such as the advisability of separation, the admissibility of matrimony, and, finally, whether on the last day they would rise as joined in life, or separated.
There is an account of two united females, similar in conjunction to the "Hungarian sisters," who were born in Italy in 1700.

They were killed at the age of four months by an attempt of a surgeon to separate them.
In 1856 there was reported to have been born in Texas, twins after the manner of Helen and Judith, united back to back, who lived and attained some age.

They were said to have been of different natures and dispositions, and inclined to quarrel very often.
Pancoast gives an extensive report of Millie-Christine, who had been extensively exhibited in Europe and the United States.

They were born of slave parents in Columbus County, N.C., July 11, 1851; the mother, who had borne 8 children before, was a stout negress of thirty-two, with a large pelvis.

The presentation was first by the stomach and afterward by the breech.