Thank you so much Lucie.
It makes a lot of since with this Pedro Augustin. As Isidoro did tell that he had to take care of his little brother Augustin after they lost their parents.
What did confuse were that he also had an older brother by the same name, and he didn't tell anything about him.
Of course sad that you couldn't find anything more, but it was worth a shot, and I appreciate it a lot.