Juan de Zagala was not present at the 1540 muster. In 1551 he was a witness for expeditionary Cristóbal de Escobar and stated that he had gone to Tierra Nueva and served in Vázquez de Coronado's personal guard.
AGI, Justicia, 274, N.2 [witness is Juan de Zagala, 1543, Mexico City, lives with Antonio de Oliver, calls him his amo, can sign his name (signed)];
AGI, México, 204, N.14 [1551, witness:for Cristóbal de Escobar [Juan de Zagala, estante in México, was a witness] [he could sign his name (no signature on copy) [he stated he was with the advance guard from Culiacán to Cíbola and witnessed the hunger that they suffered, also the death of many Indian allies] [returned w/Escobar in Vázquez de Coronado's personal guard]
Relatives: ?AGI, Pasajeros, L.4, E.4752 [April 1566, Pedro Gastón, vecino de Medina de Rioseco, soltero, hijo de Juan de Zagala y de María de Garro, a Nueva España];
?AGS, Chancillería, Registro del Sello de Corte, 149012,377 [A los alcaldes de Sanlúcar de Barrameda que hagan justicia a Juan Rodríguez de los Pescadores, despensero real de los pescados, que reclama una deuda a Juan de Zagala, arrendador de alcabalas de Sevilla, de una carga de pescado para la despensa real, December 1490 (father or other relative)]