I haven't been able to find an obit for Pascual Bethencourt.
Do you have full access to Ancetry.com?
Have you looked at all the immigration records for him? Search Pas* B*court. (at least I think they're for him.)
Look at the original scanned records, not just the indexes.
At least one included his mother's name...Another said he was naturalized May 23, 1916.