Many parents of super-siblings were born abroad, hailing from Haiti, Isreal, Poland, China, and India.
Most of the families include a parent who had a background in education, from preschool painting to college physics.
Lots of parents were involved in political activism, including two who participated in the civil rights movement.
Siblings recall frequent, intense conflict among their brothers and sisters--but little conflict between their parents.
Brush with death
Many famillies have an awareness of mortality, from a severe illness to the death of a family member.
Free to be
Few of the siblings recall growing up with firm rules, and most said they enjoyed more freedom than their peers (and much more than 21st century kids).