Pedro Peon Contreras was the father of Maria Peon y Regil, who travelled with Joaquin Peon from Merida to NYC on May 20, 1912. The address listed on the Ellis Island Manifest is Calle 58, no. 510.

You might try contacting Juan Peon at Diario de Yucatan. He is the city historian.

My granmother's uncle was Joaquin Peon. My grandmother was Mercedes Duarte, daughter of Maria Peon de Aznar and Rafael Duarte of Merida. Perhaps we are distantly related...