Three vehicles are involved and two have gone down a bank in Kingseat.
Both the driver and the newborn baby in the back survived unhurt.
The victims "lay unattended for nearly half an hour".
She was missing for three days, and was forced to drink her own urine to survive.
"I'm still lost for words bro. I just can't believe it."
They were Arteen Mosaferi, 4, and Radeen Mosaferi, two months old, from Hamilton.
He had been a performer with the circus show for more than 15 years.
The three victims of the fatal pursuit were all Nelson locals.
The Sydney physician is charged with careless driving after he and five others were injured.
Almost 50 other passengers were injured in the high-speed accident.
Motorists on the Napier-Taupō road were forced to swerve out of the way.
The train was taking Republican members of the US Congress to an annual retreat.
He was carrying a metal oxygen cylinder that was pulled by the machine's magnetic field.