I'm doing a search of the Iglesias family ancestors of my grandfather. I do not know much about their siblings and cousins.Those Iglesias lived in the area of Utuado and its surroundings.
grandfather:Amos Iglesias g-grandfathers:Rafael Rivera & Emma Iglesias gg-grandfathers:Amos Yglesias & Emilia Nuñez ggg-grandfathers:Emilio Yglesias & Charlotte A. Van Pelt gggg-grandfathers: Eudaldo Yglesias & Carmen Yglesias
As you can see, that last name originally was written with "Y" but later Emma Iglesias, change it to "I".I know siblings up-to Amos Yglesias, but not all of them.
If you think there is any connection, let me know...