The delegates recalled the revolutionary life of To Hieu. He was born in 1912, in Xuan Cau village, Nghia Tru commune, Van Giang district, the northern province of Hung Yen. He was the youngest child in a poor Confucian family, part of the patriotic To clan, with many generations of scholars in Hung Yen province. Following the patriotic tradition of his family, clan, and homeland, when he was only 14 years old, To Hieu participated in the school strike movements and a mourning event for the death of Phan Chau Trinh, so he was expelled from the colonial school. The 32-year-old hero had 18 years engaging in revolutionary activities, with many years kept in prisons, including Son La Prison, where he died.

The provincial leaders respectfully offered incense to commemorate and express their deep gratitude for the great contributions of the heroic martyrs and To Hieu to the cause of struggling for national independence and unification. The Party Organisation, authorities and people of all ethnic groups in Son La province promise to follow the "Spirit of To Hieu" and revolutionary predecessors, promoting solidarity, dynamism and creativity, overcoming difficulties and challenges, successfully fulfilling socio-economic development, national defense and security goals, hence making the homeland of Son La increasingly rich, beautiful and prosperous, deserving the great wishes and contributions of the heroic martyrs.