Our ancestors were connected. Robert born 1710 in Carrichnasure, County of Tipperary Ireland. In 1728 Robert was officially sent to Tenerife, Canary Islands. Except around 1800 my part of the family moved to Mexico. Not Many Delahanty's were in Tenerife. Surname variations mostly occured when somebody accidentally changes 1 or 2 letters while filling out documents. I found 3 different changes on baptismal certificates for same person a Joseph Delahanty born 3/19/1847 in Mexico.