All his children are with Khadeja except Ibrahim, his children are : Al-qasim, Zainab, Roqaya, Om-Kolthoum, Fatima, Abdu-allah Source: Arrahik Almakhtoum
actually no he did'NT have a 9 year old wife but he had a wife called khadeja and she was 40 years old but some hadiths says that Allah have brought her to youth days prophet muhammed was 25 years old and Allah brought her to youth days meybe younger than prophet muhammed (peace be upon him)