Hi Kyleen,
I do have a Michele and a Giuseppe Giannini in my family. Both were children of Giovanni Giannini and Filippa LaRocca (married in 1816). Giovanni and Filippa would be my Gr Gr Gr Gr Grandparents. I can send you more details.
All were born in Roseto Valfortore, Italy.
Michele Giannini was christened in 13 Jan 1843
Giuseppe Giannini was christened in 9 Feb 1833
Greg