From the April 13, 1910 NYT:

Officers of the Juvenile Court to-day began an investigation of the case of Annie Epps, 10 years old, who gave girth (sic) to a girl baby at the County Hospital several days ago. It was reported to-night that the young mother and her child were doing well.

From the February 3, 2010 Daily Mail:

A nine-year-old Chinese schoolgirl has become one of the world's youngest mothers after giving birth to a healthy boy.

The unnamed girl was brought to a hospital in Changchun, which lies in the north-east of the country, when she was eight and a half months pregnant.

Two days later, she gave birth to the 6lb boy by Cesarean section, a Chinese newspaper has reported.