Page "Madoc" Paragraph 14

In all, at least thirteen real tribes, five unidentified tribes, and three unnamed tribes have been identified as Welsh Indians.

Eventually, the legend settled on identifying the Welsh Indians with the Mandan people, who were said to differ from their neighbors in culture, language, and appearance.

The painter George Catlin suggested the Mandans were descendants of Madoc and his fellow voyagers in North American Indians ( 1841 ); he found the round Mandan Bull Boat similar to the Welsh coracle, and he thought the advanced architecture of Mandan villages must have been learned from Europeans ( advanced North American societies such as the Mississippian and Hopewell cultures were not well known in Catlin's time ).

Supporters of this claim have drawn links between Madoc and the Mandan mythological figure Lone Man, who, according to one tale, protected some villagers from a flooding river with a wooden corral.