He was referred to as an Etchemin chief but the modern designation for the Saint John River Indians is Malecite. His headquarters at that time was a village called Ouygoudy (or Menagoueche according to Ganong) on the west side of what is now Saint John harbour. Lescarbot, describing this village, which he visited in 1607, said it was enclosed by a strong stockade with many lodges inside, one of which was as large as a market hall with numerous families dwelling in it.
In 1605 Secoudon guided Champlain to an outcropping of copper ore on La Baye des Mines (Minas Basin) and later assisted Champlain and his companions when their pinnace was wrecked. He also acted as a guide to the French on two voyages along the New England coast. In 1606 Jean de Biencourt de Poutrincourt found Secoudon and Messamouet trading articles they had obtained from the French with the Indians of the Penobscot area.
At the time of Lescarbot’s visit to Secoudon at Ouygoudy he had assembled a war-party including Indians from as far distant as Gaspé. They were preparing to join Membertou of Port-Royal renown in an attack on the Armouchiquois of New England.
Father Biard was much impressed by Secoudon’s apparent interest in French civilization and by the fact that in imitation of the French he had erected a cross in front of his lodge and wore a cross around his neck. He also attended religious worship making a great show of piety.
In 1616 Father Biard referred to Secoudon as already dead at that time.