The indios amigos were not listed on the 1540 muster but many were present. They also rarely appear as individuals in the documentary record. All that is known is the fact that fray Marcos de Niza mentioned in his report that he brought Marcos (Native from Mexico City) with him.
Narrative Account by Fray Marcos de Niza in Flint & Flint, Documents, Document 6 [fol. 7r: Marcos de Niza had brought him from [Ciudad de] Mexico]