Just saw this post. I've researched many Sonoran families and luckily I have your Francisco Alvarez.
Manuel Alvarez and Manuela Miranda also had a daughter, Petra. She was born in Cucurpe, Sonora, Mx. Manuel was born around 1814 and Manuela was born around 1822. I haven't dug that much but you can find some records in my family tree. (Doesn't look as though we are relatives but I ran across your family while searching for our Alvarez family.)