Grace, Im making the consult to some cousins and awaiting their comments.
By now your dates coincides with my relatives dates.
Giovanni F. (ggg) borned on 1810, died 1848 or 52.
Had 3 sons Federico, Emanuel and Aquiles (my gg)who borned on 1847 and died 1914 moved to Uruguay on 1872, married in Montevideo and one of their child was my grandfather Aquiles.
Your gg Casandra (borned 1853)had 6 years of difference with my gg Aquiles birhtday.
My record show that Federico had 3 child Vincenzo, Juan and Ursulina. Emanuel no record. And Aquiles 9 childs.
As I told this is just my branch and Icant confirm if Giovanni Ferriolo had more relatives.
Did you see the picture included on my last msg?
That is the front view of the Ferriolos house at Santa Sofia which I visited with my wife on 2007.
Im continue looking.
Regards
Alfredo