Head of household in 1910 Census (age 37)
Series: T624 Roll: 97 Page: 107
Home in 1910: San Francisco Assembly District 33, San Francisco, CA

Family members:
Valentina (wife) age 31
Olivia (daughter) age 12
Fred (son) age 10
Herbert (son) age 3

Emilio immigrated to US about 1891 and is listed as Naturalized (1910)

WWI Draft Registration Record:
Emilio Muzio
659 Felton St. SF
Age in years: 45
DOB: January 21, 1873

1920 & 30 Fed Census have youngest children born as late as 1915. In 1920 Fed Census wife is a widow so he died between 1915-20. WWI?