Son of the late Robert Mwangangi Mui and Monicah Nzaya Robert Mwangangi. Husband of Redempta Mary Kondi of Prisons Staff Training College Ruiru. Father of Norbert, Noris, and Neville. Son-in-law of the late Kondi and Kavenge Kondi. Brother of Isaac Mwendwa, Kennedy Robert (Ass. Chief Kisingo Sub-location), Jeremiah Kyalo, Dr. Joseph Mwangangi (Kemri Kilifi), John Kiminza, Samson Mwangangi (Makueni County Referral Hospital), Josephat Mutua (Nairobi) and Eric Mbondo. Dorcas Kambua (Mawasco Makindu) and Hellen Mbuthia.