I am an Ybarrondo, but name was spelled Ibarrondo when my Gr. grandfather came to this country from Madrid, Spain in mid 1880s. He was Tomas/Thomas de Ibarrondo/Ybarrondo b. abt 1850-51, he gradurated as a medical doctor from Univ. Madrid. He came to US after his wife died shortly after 1880 with 3 of his children, leaving the 4th behind as he was a baby, left in a nurses care. The nurse ran away with Jose and did not tell him who he was till on her deathbed. Jose remain in Spain, married and had a family. His son Luis come to US and met the rest of the family in US. Tomas' wife was Simona Blanca Rameriz Contero, both were born Crranza near Santander. If anyone knows this family please get in contact with me.