I was just looking at the profile for my great-great grandfather, Alfonzo Trizzino, and looked at his descendants and noticed that I am likely missing children because between Nicola Trizzino and his next youngest sibling, Rosalia, there are 7 years while there are about 8 years between Rosalia and my great grandfather Vincenzo/Vincent but then only 2 years between Vincenzo and Anna. I feel like the time between the births of Nicola and Rosalia and Rosalia and Vincent needs explaining.
I looked into the history of the time period but I could not find anything that suggests a disruption between those years. Maybe, they don't all have the same parents or children were born and died in those years?
Any suggestions on what to do next? That is short of writing to the Sicilian records place (I cannot afford that now with graduate school starting in a few months).
As usual, any and all help is appreciated!