Silvio was the son of Giuliano Andreassi and Celeste Alba. The date and place of his birth have not been found.
His wife was Shirley McCormick, who he married on ABT 1958. The place has not been found. Their only known child was Scott ().
Silvio Andreassi
Giuliano Andreassi (1890-?)
Angelo Andreassi (1856-1934)
Loreto Andreassi (c1820-1868)
Domenica Corona (c1820-?)
Domenica Pezzuti (c1854-?)
Giuseppe Pezzuti (c1816-1902)
Antonia Giuliani (c1820-1882)
Celeste Alba (1893-?)