I may have found the Silva Family in the 1920 census. The family left Honolulu, HI on the SS GOVERNOR in January 1918 and arrived in San Francisco. It it probable that they stayed in California (because John was there in 1930, etc). So I searched the 1920 census on Ancestry.com and turned up this possibility:

Name: Lucressa Silva
Home in 1920: Oakland, Alameda, California
Age: 56 years
Estimated Birth Year: abt 1864
Birthplace: Portugal
Relation to Head of House: Wife
Spouse’s Name: Manuel
Father’s Birth Place: Portugal
Mother’s Birth Place: Portugal
Marital Status: Married
Race: White
Sex: Female
Year of Immigration: 1907
Able to read: Yes
Able to Write: Yes
Image: 1123
Neighbors: View others on page
Household Members: Name Age
Manuel Silva 56
Lucressa Silva 56
Manuel Silva 18
John Silva 25
Merrill Silva 2 6/12

Source: http://search.ancestry.com/cgi-bin/sse.dll?ti=0&indiv=try&db=1920usfedcen&h=2477155

I have attached the image here: 1920 Census Silva Family. There is a few things that don’t add up with it. For starters, the husband of Lucressa (which I am reading as Lucrecia) is listed as Manuel. Mixing that up with Guilherme is somewhat unbelievable. The ages do fit. The closeness of Lucrecia in combination with two of her children (Manuel and John) are also compelling that it is a match. Also the immigration year, 1907, coincides with when they came over to Hawaii on the SS KUMERIC. The age for John fits with the John in my family. Manuel’s age is off by two years (He should be 20 by my accounting and not 18). I’m not sure what to make of the grand son (Merill). I think I’m going to keep this as a possibility. If it is them the source citation is: Year: 1920;Census Place: Oakland, Alameda, California; Roll: T625_90; Page: 16A; Enumeration District: 125; Image: 1123.