The DUARTE family that I was tracing turned out not to be the one I wanted. The reason being the family I wanted also with a daughter Florence had the surname misspelled on the 1920 and 1930 census. The Florence listed here did not marry Mr. SANTOS.
I will be re-posting my new information under the names Manuel DUARTE and Florence ROCHA, Union City, Alameda Co., CA. They had a daughter Florence born 1915 which is the I'm after.