Dậu was born on August 11th, 1885. Dậu's father was Huệ and her mother was Khuyến Nguyễn. Her paternal grandparents were Tụy and Nghiêm Nguyễn. She had six brothers and three sisters, named Trí, Lan, Lê, Chức, Diện, Sen, Còm, Nhâm and Thiêm. She died due to giỗ 4/1 âm lịch at the age of 76 in 1961.