Hi Pete! I got some new info a while go and i rearranged my family tree... here's a ink to the upper part of the Ycabalceta family tree:
http://gw.geneanet.org/index.php3?b=mauricioom&lang=it;m...I have everything as YcaZbalceta or IcaZbalceta 'cause that was the way that got to Mexico, and the present spelling of the surname...
Best Regards, Mauricio