Just after I had posted my message, I went looking for more info and had come across the same info you did. The marriage is a very probable match, although the extra birth notice was a little confusing. I know from several years of experience that the spelling of the names can change or get misspelled due to the language barrier and the way it sounded was how they tried spelling it. It is a possibility for me to cross-reference Isai with the actual being possibly Isaiah. I have no other info on Isai except what I have written about already. I am trying to find some other route to go farther, like a brother or sister. If you find anything let me know and if I do I'll keep you informed.