When writing a family history, one should always provide something more than names and dates. Take, for example, this WorldConnect entry for Josephine Myrtle (Corbin) Bicknell. Her approximate date of birth is given, and her marriage date, but nowhere does it mention that she was born with four legs.
According to The Human Marvels, Myrtle was born in 1868 with her dipygus twin sister attached down below.
The tiny body of her twin was only fully developed from the waist down and even then it was malformed – tiny and possessing only three toes on each foot. Myrtle was able to control the limbs of her sister but was unable to use them for walking and she herself had a difficult time getting around as she was born with a clubbed foot. Technically, the ‘Four-Legged Woman’ only had one good, usable leg.Despite this infirmity, Myrtle married and had children. Here's where it gets genealogically interesting.
It seems that her twin sister was also fully sexually formed – thus Myrtle possessed two vaginas. She had four daughters and a son and it has been rumored that three of her children were born from one set of organs and two from the other. Whether this is true or not; it is medically possible. [Link, via Neatorama]Medically possible, but genealogically problematic. Should she be called the birth mother of all five children? If not, should she called the surrogate mother of some? And was her husband a bigamist, an adulterer, or just a generous brother-in-law?
(More images of Myrtle may be seen here. C'mon, you know you wanna look.)