Salina, Frank and Lizzie 'appear' to be in Lake Charles (Calcasieu), Ward 3, with 'Willie' Washington, per the 1920 Census. They were married in Calcasieu parish in 1910. It would be a good idea to see if the marriage record can be obtained. I'm not sure what records are still available, but since it was at the end of the year, it should have escaped the 'great fire' of 1910.

Willie Owned his house and was born in Virginia, as were his parents. He was 45 years old. Living in the household were:
Salina 46
Frank 20 son, and
Lizzie 17 daughter

They are located in the 'Iowa' Addition. [Could be around current day Iowa (I-oh-way) Street, with which I'm familiar.]