All EXO-K member is the maknae in family.
1. Suho : One older brother (4 years older)
2. Baekhyun : One older brother (7 years older) Byun Baekbeom
3. Chanyeol : One older sister (3 years older) Park Yoora
4. D.O : One older brother (1 year older) Do Seungsoo
5. Kai : 2 older sisters (5 years older and 9 years older) Kim Jungah & *the married one I don't know her name*
2nd pic, I'm not too sure...
6. Sehun : One older brother (3years older)