He was born in 1910 near Cần Thơ, in what is today the Ninh Kiều ward of that city. Both his parents — Phan Văn Vinh and Trương Thị Cư — died when he was ten, and he was raised by an older brother and sister in a household with very little money. An uncle, Trương Quang Đẩu, scraped together the means to keep him in school and told anyone who would listen that the boy would amount to something. At twenty-one he finished his teaching qualification, and the college, however reluctantly, had to certify him. The certificate came with a posting attached. Sending an unreliable young man to teach children at the end of the country was a standard colonial solution, tidy and deniable. It put him among the poorest people in Cochinchina at exactly the moment he was looking for a reason to act.

Before he was a rebel he was a writer, and an astonishingly fast one. From late 1935 he reported for the weekly Tân Tiến, published at Sa Đéc, and roughly seventy pieces of his journalism and fiction survive from that period — around ten political essays, some twenty reportages and investigations, ten short stories and a novel running past forty thousand words, nearly all of it produced during 1936. He argued for practical things: better trades, wider commerce, self-reliance, and above all literacy, which he called the greatest danger of all when it was absent. Of his own profession he wrote that the press was the people's heart laid open before the government, a torch to help those in power see what was upright and what was crooked. In late 1937 the party's southern committee brought him to Saigon to edit a labour paper; a year later Bạc Liêu province asked for him back.

In June 1939 he was sent once more to the Rạch Gốc country, and from there he crossed to Hòn Khoai, the island group standing off the cape. What happened on 13 December 1940 was one strand of the wider Nam Kỳ uprising against French rule, and like the rest of it, it was over quickly. The rising on Hòn Khoai was put down and the men who led it were captured. On 12 July 1941 ten of them — remembered ever since as the ten fighters of Hòn Khoai — were shot at the sports ground in Cà Mau town. Phan Ngọc Hiển was thirty-one. They were schoolteachers, boatmen and islanders, not professional soldiers, and the colonial state made their deaths public on purpose, as a lesson to everyone watching from the edge of the field.

The lesson did not take. His name spread across the far south instead: onto a district, onto a main street in the provincial capital, onto two secondary schools, a middle school and a primary school. Then, on 16 June 2025, the National Assembly Standing Committee redrew the commune map of Cà Mau and created a new unit from Rạch Gốc township, the whole of Viên An Đông and part of Tân Ân, and gave it his name outright. Phan Ngọc Hiển commune covers 261.67 square kilometres and holds about 35,800 people, with the South China Sea on its southern side. Its thirteen hamlets include Rạch Gốc — the place he was exiled to — and Đồng Khởi, meaning simultaneous uprising.

One more hamlet on that list deserves a note. Vàm Lũng, on the commune's seaward flank, was the southern terminus of the sea route the north used to supply the war in the delta. A naval officer named Bông Văn Dĩa picked it over the wider, deeper alternatives at Bồ Đề and Rạch Gốc for one reason: a creek two to three metres deep, walled in by mangrove thick enough to swallow a boat whole. In October 1962 a wooden vessel code-named Phương Đông 1 came in with thirty tonnes of weapons aboard, the first of sixty-eight runs the creek would see in all over the years that came after. Two decades earlier, the same forest had hidden a schoolteacher with a printing habit and a plan. It kept its talent for concealment.