Phách was born in 1912. Phách's father was Kha and her mother is Lục Vũ Đức. Her paternal grandparents were Mạnh Cung and Hoan (Loan) Đỗ. She had three brothers and four sisters, named Nha, Pha, Du, Hanh, Càn, Nguyên and Nguyệt. She was the third oldest of the eight children. Phách is no longer alive.