Thu's father was Uyển and his mother was Ốc Nguyễn. His paternal grandparents were Thiều and Cảnh Nguyễn. He had three brothers and a sister, named Sinh, Phong, Sư and Mỹ. He had a half-brother and two half-sisters, named Hạ, Huyên and Đức. He died in July 1974 in Gia-lâm.