In the 1900 census there is a Giovanni Molinari born 1860 and wife Teresa Molinari born 1865, living in San Francisco, CA, in the 45th District. The children are Joseph, Andrea and Luisa. Giovani, Teresa and Joseph were born in Italy. Andrea and Luisa were brn in California.
In 1900 Giovanni and Teresa had been married 8 years, with 3 children born and 3 living.
Giovanni's occupation is listed as : Scavenger
In 1910 there is a John Molinari age 37, and wife Therisa age 45, living in San Francisco, CA on Detroit Street. The children are Joe D., Luisa, Andrew and Tony. I suspect this is the same family as above in 1900, with age factors thrown off. Andrew is either Andrea or another child altogether; Joe D. is Joseph and Luisa is the same, then there is the addition of Tony. The form states that Therisa had born 5 children, with only 4 living so that could mean Andrea was the one who died and that is why the name is missing?
This John Molinari is listed as a factory laborer, born in Italy. Therisa and Joe D. were born in Italy, also.
Go to www.ellisisland.org
and look for him and for Therisa/Teresa and for Joseph, too.
Bet you'll find them and possibly other family members or fellow villagers traveling over with them.